Finding the Fourth Proportional to 1,002.79, 1,500.40 and 592.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.79 : 1,500.40 = 592.15 : x
2. Step 2: Convert to fraction form
   1,002.79/1,500.40 = 592.15/x
3. Step 3: Cross multiply
   1,002.79x = 1,500.40 × 592.15
4. Step 4: Simplify right side
   1,002.79x = 888,461.86
5. Step 5: Solve for x
   x = 888,461.86/1,002.79
6. Step 6: Final answer
   x = 885.99