Finding the Fourth Proportional to 2,748.38, 4,123.22 and 899.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.38 : 4,123.22 = 899.49 : x
2. Step 2: Convert to fraction form
   2,748.38/4,123.22 = 899.49/x
3. Step 3: Cross multiply
   2,748.38x = 4,123.22 × 899.49
4. Step 4: Simplify right side
   2,748.38x = 3,708,775.20
5. Step 5: Solve for x
   x = 3,708,775.20/2,748.38
6. Step 6: Final answer
   x = 1,349.44