Finding the Fourth Proportional to 3,872.18, 5,345.82 and 2,549.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,872.18 : 5,345.82 = 2,549.73 : x
2. Step 2: Convert to fraction form
   3,872.18/5,345.82 = 2,549.73/x
3. Step 3: Cross multiply
   3,872.18x = 5,345.82 × 2,549.73
4. Step 4: Simplify right side
   3,872.18x = 13,630,397.63
5. Step 5: Solve for x
   x = 13,630,397.63/3,872.18
6. Step 6: Final answer
   x = 3,520.08