Finding the Fourth Proportional to 2,831.69, 4,243.41 and 1,187.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,831.69 : 4,243.41 = 1,187.33 : x
2. Step 2: Convert to fraction form
   2,831.69/4,243.41 = 1,187.33/x
3. Step 3: Cross multiply
   2,831.69x = 4,243.41 × 1,187.33
4. Step 4: Simplify right side
   2,831.69x = 5,038,306.78
5. Step 5: Solve for x
   x = 5,038,306.78/2,831.69
6. Step 6: Final answer
   x = 1,779.26