Finding the Fourth Proportional to 3,968.68, 5,476.86 and 2,200.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.68 : 5,476.86 = 2,200.48 : x
2. Step 2: Convert to fraction form
   3,968.68/5,476.86 = 2,200.48/x
3. Step 3: Cross multiply
   3,968.68x = 5,476.86 × 2,200.48
4. Step 4: Simplify right side
   3,968.68x = 12,051,720.89
5. Step 5: Solve for x
   x = 12,051,720.89/3,968.68
6. Step 6: Final answer
   x = 3,036.71