Finding the Fourth Proportional to 3,949.89, 5,450.83 and 2,181.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949.89 : 5,450.83 = 2,181.52 : x
2. Step 2: Convert to fraction form
   3,949.89/5,450.83 = 2,181.52/x
3. Step 3: Cross multiply
   3,949.89x = 5,450.83 × 2,181.52
4. Step 4: Simplify right side
   3,949.89x = 11,891,094.66
5. Step 5: Solve for x
   x = 11,891,094.66/3,949.89
6. Step 6: Final answer
   x = 3,010.49