Finding the Fourth Proportional to 1,167.39, 1,610.39 and 724.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.39 : 1,610.39 = 724.52 : x
2. Step 2: Convert to fraction form
   1,167.39/1,610.39 = 724.52/x
3. Step 3: Cross multiply
   1,167.39x = 1,610.39 × 724.52
4. Step 4: Simplify right side
   1,167.39x = 1,166,765.60
5. Step 5: Solve for x
   x = 1,166,765.60/1,167.39
6. Step 6: Final answer
   x = 999.47