Finding the Fourth Proportional to 1,402.31, 1,934.08 and 1,088.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.31 : 1,934.08 = 1,088.53 : x
2. Step 2: Convert to fraction form
   1,402.31/1,934.08 = 1,088.53/x
3. Step 3: Cross multiply
   1,402.31x = 1,934.08 × 1,088.53
4. Step 4: Simplify right side
   1,402.31x = 2,105,296.55
5. Step 5: Solve for x
   x = 2,105,296.55/1,402.31
6. Step 6: Final answer
   x = 1,501.30