Finding the Fourth Proportional to 1,085.52, 1,634.52 and 762.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.52 : 1,634.52 = 762.96 : x
2. Step 2: Convert to fraction form
   1,085.52/1,634.52 = 762.96/x
3. Step 3: Cross multiply
   1,085.52x = 1,634.52 × 762.96
4. Step 4: Simplify right side
   1,085.52x = 1,247,073.38
5. Step 5: Solve for x
   x = 1,247,073.38/1,085.52
6. Step 6: Final answer
   x = 1,148.83