Finding the Fourth Proportional to 3,968.50, 5,468.98 and 2,906.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.50 : 5,468.98 = 2,906.59 : x
2. Step 2: Convert to fraction form
   3,968.50/5,468.98 = 2,906.59/x
3. Step 3: Cross multiply
   3,968.50x = 5,468.98 × 2,906.59
4. Step 4: Simplify right side
   3,968.50x = 15,896,082.58
5. Step 5: Solve for x
   x = 15,896,082.58/3,968.50
6. Step 6: Final answer
   x = 4,005.56