Finding the Fourth Proportional to 3,969.05, 5,477.47 and 2,200.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.05 : 5,477.47 = 2,200.69 : x
2. Step 2: Convert to fraction form
   3,969.05/5,477.47 = 2,200.69/x
3. Step 3: Cross multiply
   3,969.05x = 5,477.47 × 2,200.69
4. Step 4: Simplify right side
   3,969.05x = 12,054,213.45
5. Step 5: Solve for x
   x = 12,054,213.45/3,969.05
6. Step 6: Final answer
   x = 3,037.05