Finding the Fourth Proportional to 2,830.12, 4,245.72 and 881.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.12 : 4,245.72 = 881.92 : x
2. Step 2: Convert to fraction form
   2,830.12/4,245.72 = 881.92/x
3. Step 3: Cross multiply
   2,830.12x = 4,245.72 × 881.92
4. Step 4: Simplify right side
   2,830.12x = 3,744,385.38
5. Step 5: Solve for x
   x = 3,744,385.38/2,830.12
6. Step 6: Final answer
   x = 1,323.05