Finding the Fourth Proportional to 1,314.46, 1,813.86 and 724.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.46 : 1,813.86 = 724.98 : x
2. Step 2: Convert to fraction form
   1,314.46/1,813.86 = 724.98/x
3. Step 3: Cross multiply
   1,314.46x = 1,813.86 × 724.98
4. Step 4: Simplify right side
   1,314.46x = 1,315,019.02
5. Step 5: Solve for x
   x = 1,315,019.02/1,314.46
6. Step 6: Final answer
   x = 1,000.42