Solve each problem.
The formula $1211.1 L=C A^{2} S$ is used to determine the approach speed for landing an aircraft, where $L$ is the gross weight of the aircraft in pounds, $C$ is the coefficient of lift, $S$ is the surface area of the wings in square feet ( $\mathrm{ft}^{2}$ ), and $A$ is approach speed in feet per second. Find $A$ for the Piper Cheyenne, which has a gross weight of 8700 lb, a coefficient of lift of $2.81,$ and wing surface area of $200 \mathrm{ft}^{2}$.