Name plates 1,2,3,4 from left. There are three capacitors here, made by plates 12,23, 34. If you split plates and rearrange, you get capctr 34 parallel with cpctr 23. their resultant is in series with cpctr 12. Calculate Q = CV where C is equivalent capacitance.
If the path is beautiful, let us not ask where it leads. But if the DESTINATION is beautiful, let us not ask HOW THE PATH IS.