Solve for the unknown number of years in each of the following: $($Do not round intermediate calculations and round your answers to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

$\backslash$table$[[$Present Value,,Interes,ate,$\backslash$table$[[$Future$],[$Value$]]],[610,2\mathrm{.}86,10,\%,1,747],[860,9\mathrm{.}85,11,\%,2,200],[18,900,18\mathrm{.}06,16,\%,275,672],[22,000,21\mathrm{.}93vv,13,\%,321,293]]$