Finding the Fourth Proportional to 3,969.54, 5,477.61 and 2,200.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.54 : 5,477.61 = 2,200.68 : x
2. Step 2: Convert to fraction form
   3,969.54/5,477.61 = 2,200.68/x
3. Step 3: Cross multiply
   3,969.54x = 5,477.61 × 2,200.68
4. Step 4: Simplify right side
   3,969.54x = 12,054,466.77
5. Step 5: Solve for x
   x = 12,054,466.77/3,969.54
6. Step 6: Final answer
   x = 3,036.74