Maybe.
You left out the coil for the motor starter. Things with coils have 2 ratings, a "Sealed" rating which is the power consumption of the coil when it is holding something, and an "Inrush" rating, which is the power it draws for an instant when you first turn it on. So all of your solenoids will have that, as well as the motor starter coil. One quick and dirty rule of thumb is to add up all of the sealed and resistive VA + the largest inrush, then round up to the nearest standard control transformer size. So in your case you already have the sealed at 905.4VA, but you need to add the inrush VA of the motor starter coil. If you have 30A fuses, it is likely a Size 1 starter and the coil inrush could be over 200VA. But check it out before going to the next size up.
BTW, in your opening statement you said W/V=A, which is not necessarily true. Watts and VA are not the same thing unless it is a purely resistive load, i.e. a heater element. Power supplies and coils are inductive and have a "power factor", the measurement of the lag between voltage and current. So Watts = V x A x pf, which means the VA is often higher than the watts.
