Finding the Fourth Proportional to 6,218.27, 8,581.40 and 3,385.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,218.27 : 8,581.40 = 3,385.83 : x
2. Step 2: Convert to fraction form
   6,218.27/8,581.40 = 3,385.83/x
3. Step 3: Cross multiply
   6,218.27x = 8,581.40 × 3,385.83
4. Step 4: Simplify right side
   6,218.27x = 29,055,144.63
5. Step 5: Solve for x
   x = 29,055,144.63/6,218.27
6. Step 6: Final answer
   x = 4,672.54