18. Find the height of the mountain

A girl was flying in a parachute. She observes the top of the mountain at an angle of elevation of 45$^{\circ}$ and the bottom of the mountain at an angle of depression of 60$^{\circ}$. If a line is drawn straight beneath the parachute, the distance from the point to the mountain is 967 $m$, then the height of the mountain is 9672641.8441674.844967 $m$.

 

(Note: Use $\sqrt{3} = 1.732$)