Finding the Fourth Proportional to 3,968.80, 5,952.78 and 1,629.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.80 : 5,952.78 = 1,629.05 : x
2. Step 2: Convert to fraction form
   3,968.80/5,952.78 = 1,629.05/x
3. Step 3: Cross multiply
   3,968.80x = 5,952.78 × 1,629.05
4. Step 4: Simplify right side
   3,968.80x = 9,697,404.69
5. Step 5: Solve for x
   x = 9,697,404.69/3,968.80
6. Step 6: Final answer
   x = 2,443.41