Finding the Fourth Proportional to 2,018.36, 3,028.08 and 978.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.36 : 3,028.08 = 978.86 : x
2. Step 2: Convert to fraction form
   2,018.36/3,028.08 = 978.86/x
3. Step 3: Cross multiply
   2,018.36x = 3,028.08 × 978.86
4. Step 4: Simplify right side
   2,018.36x = 2,964,066.39
5. Step 5: Solve for x
   x = 2,964,066.39/2,018.36
6. Step 6: Final answer
   x = 1,468.55