The Part of Fortune is marked in the chart by an X in a circle, just like the X-Men logo. It’s a theoretical point in the chart calculated from the positions of the sun, the moon and the ascendant. Because it is a theoretical point I don’t consider it to make aspects itself but is instead aspected by one’s own planets, the planets of others and by transit. When figuring this I take into account only the conjunction.
This point is associated with general prosperity, health and the career. When a planet hits this point its energy affects the blending of the sun, the moon and the ascendant taken as one. When Saturn transits this sensitive point you can expect a slowdown, to work hard for your good fortune. Jupiter here can indicate windfalls, an inflation of your fortune. When you take into account the sign and house of the Part of Fortune you can see the general flavor and area of life where these energies manifest.
My granddad’s Venus (assets) conjuncts my Part of Fortune. When Jupiter conjuncted his Venus in the seventies he set up a college fund for me. In the late eighties when it hit that point again, I used that money to go to school.
Where is your Part of Fortune? Have you noticed an effect by transit or planetary placement?