Finding the Fourth Proportional to 1,224.18, 1,837.89 and 731.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224.18 : 1,837.89 = 731.50 : x
2. Step 2: Convert to fraction form
   1,224.18/1,837.89 = 731.50/x
3. Step 3: Cross multiply
   1,224.18x = 1,837.89 × 731.50
4. Step 4: Simplify right side
   1,224.18x = 1,344,411.94
5. Step 5: Solve for x
   x = 1,344,411.94/1,224.18
6. Step 6: Final answer
   x = 1,098.21