Finding the Fourth Proportional to 1,399.05, 2,096.14 and 748.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399.05 : 2,096.14 = 748.62 : x
2. Step 2: Convert to fraction form
   1,399.05/2,096.14 = 748.62/x
3. Step 3: Cross multiply
   1,399.05x = 2,096.14 × 748.62
4. Step 4: Simplify right side
   1,399.05x = 1,569,210.46
5. Step 5: Solve for x
   x = 1,569,210.46/1,399.05
6. Step 6: Final answer
   x = 1,121.63