Finding the Fourth Proportional to 2,254.81, 3,111.24 and 1,260.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254.81 : 3,111.24 = 1,260.10 : x
2. Step 2: Convert to fraction form
   2,254.81/3,111.24 = 1,260.10/x
3. Step 3: Cross multiply
   2,254.81x = 3,111.24 × 1,260.10
4. Step 4: Simplify right side
   2,254.81x = 3,920,473.52
5. Step 5: Solve for x
   x = 3,920,473.52/2,254.81
6. Step 6: Final answer
   x = 1,738.72