Your correct indeed it is,
The switch will be in the off position.
After switching 4 times, the switch will return to its original position. So,
3922 / 4 = 980 with remainder 2.
The switch will be at the medium position after switching 3920 times, and at off position after another 2 switches.
Even tho, you shot at blink dark. you did say four positions so I just have to give you that one.