Finding the Fourth Proportional to 3,950.74, 5,449.98 and 3,205.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,950.74 : 5,449.98 = 3,205.54 : x
2. Step 2: Convert to fraction form
   3,950.74/5,449.98 = 3,205.54/x
3. Step 3: Cross multiply
   3,950.74x = 5,449.98 × 3,205.54
4. Step 4: Simplify right side
   3,950.74x = 17,470,128.89
5. Step 5: Solve for x
   x = 17,470,128.89/3,950.74
6. Step 6: Final answer
   x = 4,421.99