Finding the Fourth Proportional to 1,314.28, 1,813.71 and 724.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.28 : 1,813.71 = 724.82 : x
2. Step 2: Convert to fraction form
   1,314.28/1,813.71 = 724.82/x
3. Step 3: Cross multiply
   1,314.28x = 1,813.71 × 724.82
4. Step 4: Simplify right side
   1,314.28x = 1,314,613.28
5. Step 5: Solve for x
   x = 1,314,613.28/1,314.28
6. Step 6: Final answer
   x = 1,000.25