Finding the Fourth Proportional to 2,018.69, 3,027.69 and 978.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.69 : 3,027.69 = 978.42 : x
2. Step 2: Convert to fraction form
   2,018.69/3,027.69 = 978.42/x
3. Step 3: Cross multiply
   2,018.69x = 3,027.69 × 978.42
4. Step 4: Simplify right side
   2,018.69x = 2,962,352.45
5. Step 5: Solve for x
   x = 2,962,352.45/2,018.69
6. Step 6: Final answer
   x = 1,467.47