Finding the Fourth Proportional to 2,294.79, 3,442.83 and 978.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,294.79 : 3,442.83 = 978.62 : x
2. Step 2: Convert to fraction form
   2,294.79/3,442.83 = 978.62/x
3. Step 3: Cross multiply
   2,294.79x = 3,442.83 × 978.62
4. Step 4: Simplify right side
   2,294.79x = 3,369,205.08
5. Step 5: Solve for x
   x = 3,369,205.08/2,294.79
6. Step 6: Final answer
   x = 1,468.20