Finding the Fourth Proportional to 1,088.59, 1,502.24 and 591.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,088.59 : 1,502.24 = 591.25 : x
2. Step 2: Convert to fraction form
   1,088.59/1,502.24 = 591.25/x
3. Step 3: Cross multiply
   1,088.59x = 1,502.24 × 591.25
4. Step 4: Simplify right side
   1,088.59x = 888,191.89
5. Step 5: Solve for x
   x = 888,191.89/1,088.59
6. Step 6: Final answer
   x = 815.91