Finding the Fourth Proportional to 4,936.72, 7,401.42 and 1,647.88

Step by Step Solution

1. Step 1: Write the proportion equation
   4,936.72 : 7,401.42 = 1,647.88 : x
2. Step 2: Convert to fraction form
   4,936.72/7,401.42 = 1,647.88/x
3. Step 3: Cross multiply
   4,936.72x = 7,401.42 × 1,647.88
4. Step 4: Simplify right side
   4,936.72x = 12,196,651.99
5. Step 5: Solve for x
   x = 12,196,651.99/4,936.72
6. Step 6: Final answer
   x = 2,470.60