Finding the Fourth Proportional to 2,259.35, 3,118.02 and 1,264.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.35 : 3,118.02 = 1,264.57 : x
2. Step 2: Convert to fraction form
   2,259.35/3,118.02 = 1,264.57/x
3. Step 3: Cross multiply
   2,259.35x = 3,118.02 × 1,264.57
4. Step 4: Simplify right side
   2,259.35x = 3,942,963.19
5. Step 5: Solve for x
   x = 3,942,963.19/2,259.35
6. Step 6: Final answer
   x = 1,745.17