Finding the Fourth Proportional to 1,314.30, 1,813.68 and 724.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.30 : 1,813.68 = 724.83 : x
2. Step 2: Convert to fraction form
   1,314.30/1,813.68 = 724.83/x
3. Step 3: Cross multiply
   1,314.30x = 1,813.68 × 724.83
4. Step 4: Simplify right side
   1,314.30x = 1,314,600.61
5. Step 5: Solve for x
   x = 1,314,600.61/1,314.30
6. Step 6: Final answer
   x = 1,000.23