To find the deseasonalized sales, you can use the formula:
\[ \text{Deseasonalized Sales} = \frac{\text{Actual Sales}}{\text{Seasonal Index}} \]
In this case, the actual sales are \(1,304.00\) units and the seasonal index is \(1.09\).
Now, plug in the values:
\[ \text{Deseasonalized Sales} = \frac{1,304.00}{1.09} \approx 1,196.33 \]
Therefore, the deseasonalized sales for this period are approximately \(1,196.33\) units.