For the data in the following table, compute the additive quarterly seasonal forecast model for the number of visitors of the museum with trend. Round your values for the coefficients of the model to one decimal place.

Quarter Number of Visitors

$14185$

$211,256$

$314,651$

$47325$

$14352$

$211,594$

$315,091$

$47838$

$14483$

$212,174$

$315,695$

$48308$

$14707$

$212,894$

$316,480$