Finding the Fourth Proportional to 2,229.37, 3,342.90 and 748.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.37 : 3,342.90 = 748.06 : x
2. Step 2: Convert to fraction form
   2,229.37/3,342.90 = 748.06/x
3. Step 3: Cross multiply
   2,229.37x = 3,342.90 × 748.06
4. Step 4: Simplify right side
   2,229.37x = 2,500,689.77
5. Step 5: Solve for x
   x = 2,500,689.77/2,229.37
6. Step 6: Final answer
   x = 1,121.70