Finding the Fourth Proportional to 3,989.00, 5,974.22 and 3,850.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,989.00 : 5,974.22 = 3,850.58 : x
2. Step 2: Convert to fraction form
   3,989.00/5,974.22 = 3,850.58/x
3. Step 3: Cross multiply
   3,989.00x = 5,974.22 × 3,850.58
4. Step 4: Simplify right side
   3,989.00x = 23,004,162.92
5. Step 5: Solve for x
   x = 23,004,162.92/3,989.00
6. Step 6: Final answer
   x = 5,766.91