From a certain point on a straight road, a person observes a tower in the west direction at a distance of 200 m. He walks some distance 'along the road and finds that the same tower is 300 m south of him. What is the shortest distance of the tower from the road?
1
\(\frac{300}{\sqrt{13}}\) m
2
\(\frac{500}{\sqrt{13}}\) m
3
\(\frac{600}{\sqrt{13}}\) m
4
\(\frac{900}{\sqrt{13}}\) m