Finding the Fourth Proportional to 2,018.96, 3,028.48 and 978.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.96 : 3,028.48 = 978.96 : x
2. Step 2: Convert to fraction form
   2,018.96/3,028.48 = 978.96/x
3. Step 3: Cross multiply
   2,018.96x = 3,028.48 × 978.96
4. Step 4: Simplify right side
   2,018.96x = 2,964,760.78
5. Step 5: Solve for x
   x = 2,964,760.78/2,018.96
6. Step 6: Final answer
   x = 1,468.46