Finding the Fourth Proportional to 2,259.85, 3,118.56 and 1,265.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259.85 : 3,118.56 = 1,265.23 : x
2. Step 2: Convert to fraction form
   2,259.85/3,118.56 = 1,265.23/x
3. Step 3: Cross multiply
   2,259.85x = 3,118.56 × 1,265.23
4. Step 4: Simplify right side
   2,259.85x = 3,945,695.67
5. Step 5: Solve for x
   x = 3,945,695.67/2,259.85
6. Step 6: Final answer
   x = 1,746.00