$\backslash$table$[[$Week Actual Forecast,,$],[1,20\mathrm{.}2,38\mathrm{.}0],[2,41\mathrm{.}9,57\mathrm{.}6],[3,40\mathrm{.}2,58\mathrm{.}0],[4,58\mathrm{.}0,71\mathrm{.}6],[5,56\mathrm{.}3,59\mathrm{.}4],[6,78\mathrm{.}0,95\mathrm{.}8],[7,90\mathrm{.}6,102\mathrm{.}1],[8,90\mathrm{.}2,108\mathrm{.}0]]$

You are given the demand and forecast history for a pillow sold at a department store. According to this, what is the $3-$period weighted moving average forecast for Week $9$ with weights $1,3,4?($Use the first weight for the oldest $($the least relevant$)$ demand value. Do not round intermediate calculations. Round your final answers to two decimal places. Corsdemir, Copyrighted content. Cannot be posted$)$