Finding the Fourth Proportional to 2,748.55, 4,123.40 and 899.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.55 : 4,123.40 = 899.52 : x
2. Step 2: Convert to fraction form
   2,748.55/4,123.40 = 899.52/x
3. Step 3: Cross multiply
   2,748.55x = 4,123.40 × 899.52
4. Step 4: Simplify right side
   2,748.55x = 3,709,080.77
5. Step 5: Solve for x
   x = 3,709,080.77/2,748.55
6. Step 6: Final answer
   x = 1,349.47