Finding the Fourth Proportional to 2,830.02, 4,245.49 and 881.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.02 : 4,245.49 = 881.77 : x
2. Step 2: Convert to fraction form
   2,830.02/4,245.49 = 881.77/x
3. Step 3: Cross multiply
   2,830.02x = 4,245.49 × 881.77
4. Step 4: Simplify right side
   2,830.02x = 3,743,545.72
5. Step 5: Solve for x
   x = 3,743,545.72/2,830.02
6. Step 6: Final answer
   x = 1,322.80