Finding the Fourth Proportional to 3,949.37, 5,449.92 and 2,270.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949.37 : 5,449.92 = 2,270.51 : x
2. Step 2: Convert to fraction form
   3,949.37/5,449.92 = 2,270.51/x
3. Step 3: Cross multiply
   3,949.37x = 5,449.92 × 2,270.51
4. Step 4: Simplify right side
   3,949.37x = 12,374,097.86
5. Step 5: Solve for x
   x = 12,374,097.86/3,949.37
6. Step 6: Final answer
   x = 3,133.18