Finding the Fourth Proportional to 2,210.30, 3,313.38 and 748.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210.30 : 3,313.38 = 748.43 : x
2. Step 2: Convert to fraction form
   2,210.30/3,313.38 = 748.43/x
3. Step 3: Cross multiply
   2,210.30x = 3,313.38 × 748.43
4. Step 4: Simplify right side
   2,210.30x = 2,479,816.43
5. Step 5: Solve for x
   x = 2,479,816.43/2,210.30
6. Step 6: Final answer
   x = 1,121.94