The calculated forecast for May is $46,$ using the actual demand shown in the table below, and a $3-$month weighted moving average with weights $0\mathrm{.}1,0\mathrm{.}4,0\mathrm{.}5($the heaviest weight applied to the most recent period$).$

Nov.

Dec.

Jan.

Feb.

Mar.

Apr.

$39$

$36$

$40$

$38$

$48$

$46$