Finding the Fourth Proportional to 1,397.92, 2,097.33 and 748.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.92 : 2,097.33 = 748.50 : x
2. Step 2: Convert to fraction form
   1,397.92/2,097.33 = 748.50/x
3. Step 3: Cross multiply
   1,397.92x = 2,097.33 × 748.50
4. Step 4: Simplify right side
   1,397.92x = 1,569,854.31
5. Step 5: Solve for x
   x = 1,569,854.31/1,397.92
6. Step 6: Final answer
   x = 1,122.99