Finding the Fourth Proportional to 2,830.28, 4,244.81 and 881.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.28 : 4,244.81 = 881.42 : x
2. Step 2: Convert to fraction form
   2,830.28/4,244.81 = 881.42/x
3. Step 3: Cross multiply
   2,830.28x = 4,244.81 × 881.42
4. Step 4: Simplify right side
   2,830.28x = 3,741,434.80
5. Step 5: Solve for x
   x = 3,741,434.80/2,830.28
6. Step 6: Final answer
   x = 1,321.93