Finding the Fourth Proportional to 1,096.32, 1,641.42 and 748.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.32 : 1,641.42 = 748.92 : x
2. Step 2: Convert to fraction form
   1,096.32/1,641.42 = 748.92/x
3. Step 3: Cross multiply
   1,096.32x = 1,641.42 × 748.92
4. Step 4: Simplify right side
   1,096.32x = 1,229,292.27
5. Step 5: Solve for x
   x = 1,229,292.27/1,096.32
6. Step 6: Final answer
   x = 1,121.29