What force does the nail puller in the figure below exert on the supporting surface if the nail puller needs to exert a force of $1\mathrm{.}31{10}^{3}N$ on the nail? Assume the nail puller has negligible mass. The given distances are $d_1=44\mathrm{.}0$ cm and $d_2=2\mathrm{.}20cm.($Note that the force $F_o$ is the force that the nail puller exerts on the nail, while $F_n$ is the force the nail exerts on the nail puller.$)$

What force does the nail puller exert on the supporting surface?