Finding the Fourth Proportional to 1,397.16, 2,096.61 and 748.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.16 : 2,096.61 = 748.35 : x
2. Step 2: Convert to fraction form
   1,397.16/2,096.61 = 748.35/x
3. Step 3: Cross multiply
   1,397.16x = 2,096.61 × 748.35
4. Step 4: Simplify right side
   1,397.16x = 1,568,998.09
5. Step 5: Solve for x
   x = 1,568,998.09/1,397.16
6. Step 6: Final answer
   x = 1,122.99