Finding the Fourth Proportional to 3,969.39, 5,477.89 and 2,201.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.39 : 5,477.89 = 2,201.16 : x
2. Step 2: Convert to fraction form
   3,969.39/5,477.89 = 2,201.16/x
3. Step 3: Cross multiply
   3,969.39x = 5,477.89 × 2,201.16
4. Step 4: Simplify right side
   3,969.39x = 12,057,712.35
5. Step 5: Solve for x
   x = 12,057,712.35/3,969.39
6. Step 6: Final answer
   x = 3,037.67