Finding the Fourth Proportional to 2,601.57, 3,901.78 and 752.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.57 : 3,901.78 = 752.28 : x
2. Step 2: Convert to fraction form
   2,601.57/3,901.78 = 752.28/x
3. Step 3: Cross multiply
   2,601.57x = 3,901.78 × 752.28
4. Step 4: Simplify right side
   2,601.57x = 2,935,231.06
5. Step 5: Solve for x
   x = 2,935,231.06/2,601.57
6. Step 6: Final answer
   x = 1,128.25