Finding the Fourth Proportional to 1,229.06, 1,695.89 and 731.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229.06 : 1,695.89 = 731.61 : x
2. Step 2: Convert to fraction form
   1,229.06/1,695.89 = 731.61/x
3. Step 3: Cross multiply
   1,229.06x = 1,695.89 × 731.61
4. Step 4: Simplify right side
   1,229.06x = 1,240,726.42
5. Step 5: Solve for x
   x = 1,240,726.42/1,229.06
6. Step 6: Final answer
   x = 1,009.50