To determine the number of shirt sales from a total of 4,560 sales, we need to know the percentage of sales that were shirts. Unfortunately, the provided information does not include the percentage or the segment of the pie chart that corresponds to shirts.
If you can provide the percentage of sales for shirts from the pie chart, I can help you calculate the number of shirt sales using the following formula:
\[ \text{Number of shirt sales} = \left(\frac{\text{Percentage of shirt sales}}{100}\right) \times \text{Total sales} \]
Please provide the percentage, and I'll assist you further!