Finding the Fourth Proportional to 2,019.30, 3,028.55 and 979.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.30 : 3,028.55 = 979.30 : x
2. Step 2: Convert to fraction form
   2,019.30/3,028.55 = 979.30/x
3. Step 3: Cross multiply
   2,019.30x = 3,028.55 × 979.30
4. Step 4: Simplify right side
   2,019.30x = 2,965,859.02
5. Step 5: Solve for x
   x = 2,965,859.02/2,019.30
6. Step 6: Final answer
   x = 1,468.76