Final answer:
To allocate the advertising costs to each operating department based on departmental sales, divide the sales for each department by the total sales and multiply by the advertising costs.
Step-by-step explanation:
To allocate the advertising costs to each operating department based on departmental sales, we need to first calculate the total sales for all departments. The total sales for all departments is $152,500 + $292,800 + $164,700 = $610,000.
Then we can calculate the proportion of sales for each department by dividing the sales for each department by the total sales.
For Department 1: ($152,500 / $610,000) x $132,000 = $33,000
For Department 2: ($292,800 / $610,000) x $132,000 = $63,600
For Department 3: ($164,700 / $610,000) x $132,000 = $35,400
Therefore, the advertising cost allocated to each operating department based on departmental sales is $33,000 for Department 1, $63,600 for Department 2, and $35,400 for Department 3.