Finding the Fourth Proportional to 2,254.73, 3,111.55 and 1,260.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254.73 : 3,111.55 = 1,260.05 : x
2. Step 2: Convert to fraction form
   2,254.73/3,111.55 = 1,260.05/x
3. Step 3: Cross multiply
   2,254.73x = 3,111.55 × 1,260.05
4. Step 4: Simplify right side
   2,254.73x = 3,920,711.63
5. Step 5: Solve for x
   x = 3,920,711.63/2,254.73
6. Step 6: Final answer
   x = 1,738.88