Finding the Fourth Proportional to 3,200.21, 4,414.71 and 2,757.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,200.21 : 4,414.71 = 2,757.34 : x
2. Step 2: Convert to fraction form
   3,200.21/4,414.71 = 2,757.34/x
3. Step 3: Cross multiply
   3,200.21x = 4,414.71 × 2,757.34
4. Step 4: Simplify right side
   3,200.21x = 12,172,845.43
5. Step 5: Solve for x
   x = 12,172,845.43/3,200.21
6. Step 6: Final answer
   x = 3,803.77