Finding the Fourth Proportional to 2,555.72, 3,831.50 and 1,323.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.72 : 3,831.50 = 1,323.48 : x
2. Step 2: Convert to fraction form
   2,555.72/3,831.50 = 1,323.48/x
3. Step 3: Cross multiply
   2,555.72x = 3,831.50 × 1,323.48
4. Step 4: Simplify right side
   2,555.72x = 5,070,907.00
5. Step 5: Solve for x
   x = 5,070,907.00/2,555.72
6. Step 6: Final answer
   x = 1,984.14