Finding the Fourth Proportional to 1,002.52, 1,502.82 and 771.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.52 : 1,502.82 = 771.04 : x
2. Step 2: Convert to fraction form
   1,002.52/1,502.82 = 771.04/x
3. Step 3: Cross multiply
   1,002.52x = 1,502.82 × 771.04
4. Step 4: Simplify right side
   1,002.52x = 1,158,734.33
5. Step 5: Solve for x
   x = 1,158,734.33/1,002.52
6. Step 6: Final answer
   x = 1,155.82