Finding the Fourth Proportional to 3,968.91, 5,477.10 and 2,200.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.91 : 5,477.10 = 2,200.53 : x
2. Step 2: Convert to fraction form
   3,968.91/5,477.10 = 2,200.53/x
3. Step 3: Cross multiply
   3,968.91x = 5,477.10 × 2,200.53
4. Step 4: Simplify right side
   3,968.91x = 12,052,522.86
5. Step 5: Solve for x
   x = 12,052,522.86/3,968.91
6. Step 6: Final answer
   x = 3,036.73