Finding the Fourth Proportional to 2,259.07, 3,117.38 and 1,264.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.07 : 3,117.38 = 1,264.19 : x
2. Step 2: Convert to fraction form
   2,259.07/3,117.38 = 1,264.19/x
3. Step 3: Cross multiply
   2,259.07x = 3,117.38 × 1,264.19
4. Step 4: Simplify right side
   2,259.07x = 3,940,938.71
5. Step 5: Solve for x
   x = 3,940,938.71/2,259.07
6. Step 6: Final answer
   x = 1,744.50