Finding the Fourth Proportional to 2,748.72, 4,123.68 and 801.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.72 : 4,123.68 = 801.10 : x
2. Step 2: Convert to fraction form
   2,748.72/4,123.68 = 801.10/x
3. Step 3: Cross multiply
   2,748.72x = 4,123.68 × 801.10
4. Step 4: Simplify right side
   2,748.72x = 3,303,480.05
5. Step 5: Solve for x
   x = 3,303,480.05/2,748.72
6. Step 6: Final answer
   x = 1,201.82