Finding the Fourth Proportional to 2,259.72, 3,118.71 and 1,265.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.72 : 3,118.71 = 1,265.06 : x
2. Step 2: Convert to fraction form
   2,259.72/3,118.71 = 1,265.06/x
3. Step 3: Cross multiply
   2,259.72x = 3,118.71 × 1,265.06
4. Step 4: Simplify right side
   2,259.72x = 3,945,339.68
5. Step 5: Solve for x
   x = 3,945,339.68/2,259.72
6. Step 6: Final answer
   x = 1,745.94