Finding the Fourth Proportional to 2,016.72, 3,023.78 and 847.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.72 : 3,023.78 = 847.48 : x
2. Step 2: Convert to fraction form
   2,016.72/3,023.78 = 847.48/x
3. Step 3: Cross multiply
   2,016.72x = 3,023.78 × 847.48
4. Step 4: Simplify right side
   2,016.72x = 2,562,593.07
5. Step 5: Solve for x
   x = 2,562,593.07/2,016.72
6. Step 6: Final answer
   x = 1,270.67