Finding the Fourth Proportional to 2,254.51, 3,111.22 and 1,259.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254.51 : 3,111.22 = 1,259.79 : x
2. Step 2: Convert to fraction form
   2,254.51/3,111.22 = 1,259.79/x
3. Step 3: Cross multiply
   2,254.51x = 3,111.22 × 1,259.79
4. Step 4: Simplify right side
   2,254.51x = 3,919,477.54
5. Step 5: Solve for x
   x = 3,919,477.54/2,254.51
6. Step 6: Final answer
   x = 1,738.51