SirCB85

Seems good to me, although I don´t get your formula, I just confirmed your result using 2*r*cos(54°).

Actually you don´t get the distance between the 4 satellites by dividing the circumference by 4. Instead you have to look at the satellites as they are the 4 corners of a square with Kerbin in the middle. So the distance from one sattelite to the next is the squareroot of 1067km squared times 2. Which gives us roughly 1,509km.