please show work for calculations

CALCULATE THE FORECAST FOR PERIOD 5 USING WEIGHTED MOVING AVERAGE - same weights as used in the solved example (i.e., Question 2t=0.5,t1=0.3,t2=0.2 ) \begin{tabular}{|c|c|c|c|} \hline & Actual Data & Forecast & \\ \hline Period & Demand & \begin{tabular}{l} 2 Week Moving \\ Average \end{tabular} & \begin{tabular}{l} 4 Week Moving \\ Average \end{tabular} \\ \hline 1 & 654 & x & x \\ \hline 2 & 658 & x & x \\ \hline 3 & 665 & 656 & \\ \hline 4 & 672 & 661.5 & x \\ \hline 5 & 673 & 668.5 & \\ \hline 6 & 671 & 672.5 & \\ \hline 7 & 693 & 672 & \\ \hline 8 & 694 & 682 & \\ \hline 9 & 701 & 693.5 & \\ \hline 10 & 703 & 697.5 & \\ \hline 11 & 702 & 702 & \\ \hline 12 & 710 & 702.5 & \\ \hline \multirow[t]{4}{*}{13} & & 706 & \\ \hline & & & \\ \hline & & & \\ \hline & & & \\ \hline \multicolumn{3}{|c|}{ FORECAST FOR PERIOD } & \\ \hline \multirow{2}{*}{ Question 1} & 13 USING & 4-WEEK & \\ \hline & MOVING & AVERAGE & \\ \hline \end{tabular}