Finding the Fourth Proportional to 2,554.94, 3,831.98 and 889.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554.94 : 3,831.98 = 889.31 : x
2. Step 2: Convert to fraction form
   2,554.94/3,831.98 = 889.31/x
3. Step 3: Cross multiply
   2,554.94x = 3,831.98 × 889.31
4. Step 4: Simplify right side
   2,554.94x = 3,407,823.27
5. Step 5: Solve for x
   x = 3,407,823.27/2,554.94
6. Step 6: Final answer
   x = 1,333.82