Finding the Fourth Proportional to 2,260.28, 3,119.10 and 1,265.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,260.28 : 3,119.10 = 1,265.47 : x
2. Step 2: Convert to fraction form
   2,260.28/3,119.10 = 1,265.47/x
3. Step 3: Cross multiply
   2,260.28x = 3,119.10 × 1,265.47
4. Step 4: Simplify right side
   2,260.28x = 3,947,111.88
5. Step 5: Solve for x
   x = 3,947,111.88/2,260.28
6. Step 6: Final answer
   x = 1,746.29