Finding the Fourth Proportional to 3,663.56, 5,489.58 and 2,200.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.56 : 5,489.58 = 2,200.88 : x
2. Step 2: Convert to fraction form
   3,663.56/5,489.58 = 2,200.88/x
3. Step 3: Cross multiply
   3,663.56x = 5,489.58 × 2,200.88
4. Step 4: Simplify right side
   3,663.56x = 12,081,906.83
5. Step 5: Solve for x
   x = 12,081,906.83/3,663.56
6. Step 6: Final answer
   x = 3,297.86