Finding the Fourth Proportional to 2,254.12, 3,110.72 and 1,259.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254.12 : 3,110.72 = 1,259.49 : x
2. Step 2: Convert to fraction form
   2,254.12/3,110.72 = 1,259.49/x
3. Step 3: Cross multiply
   2,254.12x = 3,110.72 × 1,259.49
4. Step 4: Simplify right side
   2,254.12x = 3,917,920.73
5. Step 5: Solve for x
   x = 3,917,920.73/2,254.12
6. Step 6: Final answer
   x = 1,738.12