Finding the Fourth Proportional to 1,004.42, 1,385.46 and 724.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.42 : 1,385.46 = 724.14 : x
2. Step 2: Convert to fraction form
   1,004.42/1,385.46 = 724.14/x
3. Step 3: Cross multiply
   1,004.42x = 1,385.46 × 724.14
4. Step 4: Simplify right side
   1,004.42x = 1,003,267.00
5. Step 5: Solve for x
   x = 1,003,267.00/1,004.42
6. Step 6: Final answer
   x = 998.85