Finding the Fourth Proportional to 1,227.52, 1,693.72 and 729.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227.52 : 1,693.72 = 729.98 : x
2. Step 2: Convert to fraction form
   1,227.52/1,693.72 = 729.98/x
3. Step 3: Cross multiply
   1,227.52x = 1,693.72 × 729.98
4. Step 4: Simplify right side
   1,227.52x = 1,236,381.73
5. Step 5: Solve for x
   x = 1,236,381.73/1,227.52
6. Step 6: Final answer
   x = 1,007.22