Finding the Fourth Proportional to 3,662.10, 5,050.62 and 2,821.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,662.10 : 5,050.62 = 2,821.86 : x
2. Step 2: Convert to fraction form
   3,662.10/5,050.62 = 2,821.86/x
3. Step 3: Cross multiply
   3,662.10x = 5,050.62 × 2,821.86
4. Step 4: Simplify right side
   3,662.10x = 14,252,142.55
5. Step 5: Solve for x
   x = 14,252,142.55/3,662.10
6. Step 6: Final answer
   x = 3,891.80