Finding the Fourth Proportional to 3,969.34, 5,477.63 and 2,200.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.34 : 5,477.63 = 2,200.91 : x
2. Step 2: Convert to fraction form
   3,969.34/5,477.63 = 2,200.91/x
3. Step 3: Cross multiply
   3,969.34x = 5,477.63 × 2,200.91
4. Step 4: Simplify right side
   3,969.34x = 12,055,732.25
5. Step 5: Solve for x
   x = 12,055,732.25/3,969.34
6. Step 6: Final answer
   x = 3,037.22