Finding the Fourth Proportional to 2,254.79, 3,111.40 and 1,259.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254.79 : 3,111.40 = 1,259.93 : x
2. Step 2: Convert to fraction form
   2,254.79/3,111.40 = 1,259.93/x
3. Step 3: Cross multiply
   2,254.79x = 3,111.40 × 1,259.93
4. Step 4: Simplify right side
   2,254.79x = 3,920,124.35
5. Step 5: Solve for x
   x = 3,920,124.35/2,254.79
6. Step 6: Final answer
   x = 1,738.58