Finding the Fourth Proportional to 2,557.51, 3,831.25 and 1,325.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.51 : 3,831.25 = 1,325.73 : x
2. Step 2: Convert to fraction form
   2,557.51/3,831.25 = 1,325.73/x
3. Step 3: Cross multiply
   2,557.51x = 3,831.25 × 1,325.73
4. Step 4: Simplify right side
   2,557.51x = 5,079,203.06
5. Step 5: Solve for x
   x = 5,079,203.06/2,557.51
6. Step 6: Final answer
   x = 1,986.00