Finding the Fourth Proportional to 2,259.52, 3,117.92 and 1,264.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.52 : 3,117.92 = 1,264.72 : x
2. Step 2: Convert to fraction form
   2,259.52/3,117.92 = 1,264.72/x
3. Step 3: Cross multiply
   2,259.52x = 3,117.92 × 1,264.72
4. Step 4: Simplify right side
   2,259.52x = 3,943,295.78
5. Step 5: Solve for x
   x = 3,943,295.78/2,259.52
6. Step 6: Final answer
   x = 1,745.19