Finding the Fourth Proportional to 2,259.27, 3,117.74 and 1,264.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.27 : 3,117.74 = 1,264.50 : x
2. Step 2: Convert to fraction form
   2,259.27/3,117.74 = 1,264.50/x
3. Step 3: Cross multiply
   2,259.27x = 3,117.74 × 1,264.50
4. Step 4: Simplify right side
   2,259.27x = 3,942,375.91
5. Step 5: Solve for x
   x = 3,942,375.91/2,259.27
6. Step 6: Final answer
   x = 1,744.98