Finding the Fourth Proportional to 1,314.28, 1,813.82 and 724.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.28 : 1,813.82 = 724.93 : x
2. Step 2: Convert to fraction form
   1,314.28/1,813.82 = 724.93/x
3. Step 3: Cross multiply
   1,314.28x = 1,813.82 × 724.93
4. Step 4: Simplify right side
   1,314.28x = 1,314,892.53
5. Step 5: Solve for x
   x = 1,314,892.53/1,314.28
6. Step 6: Final answer
   x = 1,000.47