Finding the Fourth Proportional to 1,225.29, 1,833.35 and 729.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.29 : 1,833.35 = 729.89 : x
2. Step 2: Convert to fraction form
   1,225.29/1,833.35 = 729.89/x
3. Step 3: Cross multiply
   1,225.29x = 1,833.35 × 729.89
4. Step 4: Simplify right side
   1,225.29x = 1,338,131.02
5. Step 5: Solve for x
   x = 1,338,131.02/1,225.29
6. Step 6: Final answer
   x = 1,092.09