Finding the Fourth Proportional to 3,968.56, 5,476.43 and 2,200.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.56 : 5,476.43 = 2,200.13 : x
2. Step 2: Convert to fraction form
   3,968.56/5,476.43 = 2,200.13/x
3. Step 3: Cross multiply
   3,968.56x = 5,476.43 × 2,200.13
4. Step 4: Simplify right side
   3,968.56x = 12,048,819.55
5. Step 5: Solve for x
   x = 12,048,819.55/3,968.56
6. Step 6: Final answer
   x = 3,036.07