Finding the Fourth Proportional to 2,821.88, 3,884.46 and 2,443.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,821.88 : 3,884.46 = 2,443.62 : x
2. Step 2: Convert to fraction form
   2,821.88/3,884.46 = 2,443.62/x
3. Step 3: Cross multiply
   2,821.88x = 3,884.46 × 2,443.62
4. Step 4: Simplify right side
   2,821.88x = 9,492,144.15
5. Step 5: Solve for x
   x = 9,492,144.15/2,821.88
6. Step 6: Final answer
   x = 3,363.77