Arduino light tracking and reflecting

Hi, everyone! I am working on a project which tracks sunlight and reflect light. I have made the light tracking system with four light dependent resistors and two servo motors to track the light through reference from the internet. Now, I am facing problems with the reflecting mechanism of the project. If the position that i want to reflect and the device is at a constant position, how can i track the sunlight and reflect to the position?

The easy way: use trigonometry.