Finding the Fourth Proportional to 2,254.43, 3,111.12 and 1,259.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254.43 : 3,111.12 = 1,259.71 : x
2. Step 2: Convert to fraction form
   2,254.43/3,111.12 = 1,259.71/x
3. Step 3: Cross multiply
   2,254.43x = 3,111.12 × 1,259.71
4. Step 4: Simplify right side
   2,254.43x = 3,919,108.98
5. Step 5: Solve for x
   x = 3,919,108.98/2,254.43
6. Step 6: Final answer
   x = 1,738.40