Finding the Fourth Proportional to 1,123.74, 1,683.86 and 733.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.74 : 1,683.86 = 733.05 : x
2. Step 2: Convert to fraction form
   1,123.74/1,683.86 = 733.05/x
3. Step 3: Cross multiply
   1,123.74x = 1,683.86 × 733.05
4. Step 4: Simplify right side
   1,123.74x = 1,234,349.91
5. Step 5: Solve for x
   x = 1,234,349.91/1,123.74
6. Step 6: Final answer
   x = 1,098.43