we know that
volume of the prism= area of the base*height
Area of the base=perimeter*apothem/2
perimeter of the base=8*4
perimeter=32 in
Area of the base=32*4.83/2
Area of the base=77.28 in²
volume of the prism=77.28*12
volume of the prism=927.36 in³
therefore
the answer is
927 in³