Finding the Fourth Proportional to 3,968.48, 5,477.56 and 2,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.48 : 5,477.56 = 2,475.50 : x
2. Step 2: Convert to fraction form
   3,968.48/5,477.56 = 2,475.50/x
3. Step 3: Cross multiply
   3,968.48x = 5,477.56 × 2,475.50
4. Step 4: Simplify right side
   3,968.48x = 13,559,699.78
5. Step 5: Solve for x
   x = 13,559,699.78/3,968.48
6. Step 6: Final answer
   x = 3,416.85