Finding the Fourth Proportional to 5,179.83, 7,148.17 and 2,821.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,179.83 : 7,148.17 = 2,821.98 : x
2. Step 2: Convert to fraction form
   5,179.83/7,148.17 = 2,821.98/x
3. Step 3: Cross multiply
   5,179.83x = 7,148.17 × 2,821.98
4. Step 4: Simplify right side
   5,179.83x = 20,171,957.04
5. Step 5: Solve for x
   x = 20,171,957.04/5,179.83
6. Step 6: Final answer
   x = 3,894.33