Answer
The force of Earth's gravity on the spacecraft is 2010 N.
Work Step by Step
$F_g = G\frac{m_1m_2}{r^2}$
$F_g = \frac{(6.67\times 10^{-11} ~N\cdot m^2/kg^2)(5.98\times 10^{24} ~kg)(1850 ~kg)}{(3\times 6.38\times 10^6 ~m)^2}$
$F_g = 2014.3\approx2010 ~N$
The force of Earth's gravity on the spacecraft is 2010 N.
