Finding the Fourth Proportional to 2,017.74, 3,023.16 and 978.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.74 : 3,023.16 = 978.24 : x
2. Step 2: Convert to fraction form
   2,017.74/3,023.16 = 978.24/x
3. Step 3: Cross multiply
   2,017.74x = 3,023.16 × 978.24
4. Step 4: Simplify right side
   2,017.74x = 2,957,376.04
5. Step 5: Solve for x
   x = 2,957,376.04/2,017.74
6. Step 6: Final answer
   x = 1,465.69