Finding the Fourth Proportional to 4,978.53, 7,468.20 and 1,647.42

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.53 : 7,468.20 = 1,647.42 : x
2. Step 2: Convert to fraction form
   4,978.53/7,468.20 = 1,647.42/x
3. Step 3: Cross multiply
   4,978.53x = 7,468.20 × 1,647.42
4. Step 4: Simplify right side
   4,978.53x = 12,303,262.04
5. Step 5: Solve for x
   x = 12,303,262.04/4,978.53
6. Step 6: Final answer
   x = 2,471.26