$\backslash$table$[[\frac{x}{\frac{?}{?}}y,0,1,2,3],[0,2\mathrm{.}25,2\mathrm{.}33,2\mathrm{.}63,2\mathrm{.}78],[1,6\mathrm{.}25,6\mathrm{.}5,7\mathrm{.}26,8\mathrm{.}08],[2,6\mathrm{.}5,6\mathrm{.}85,7\mathrm{.}75,8\mathrm{.}68],[3,8\mathrm{.}25,8\mathrm{.}84,9\mathrm{.}8,10\mathrm{.}78]]$

Use the above table to estimate the value of $f_x(1,2).$