The number of watts of power $P(x)$ generated by a particular home$-$sized turbine at a wind speed of $x$ miles per hour can be approximated by the polynomial function shown below.

$P(x)=0\mathrm{.}0155x^3+0\mathrm{.}1171x^2-1\mathrm{.}3397x+3\mathrm{.}7064$

Use the graph to estimate the power, in watts, generated by a $25-mph$ wind.

The power generated by a $25-mph$ wind is about watts.

$($Round to the nearest ten as needed.$)$