Watershed Management

An excavated dugout farm pond has a rectangular top water surface area $A_1 = 600\text{ m}^2$, a flat bottom area $A_2 = 200\text{ m}^2$, and a vertical water depth $D = 3.0\text{ m}$. The mid-depth cross-sectional area is $A_m = 375\text{ m}^2$. Using the prismoidal formula $V = \frac{D}{6} (A_1 + A_2 + 4 A_m)$, the water storage capacity $V$ in $\text{m}^3$ is ________ (answer in integer).