Finding the Fourth Proportional to 2,294.49, 3,442.62 and 978.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,294.49 : 3,442.62 = 978.51 : x
2. Step 2: Convert to fraction form
   2,294.49/3,442.62 = 978.51/x
3. Step 3: Cross multiply
   2,294.49x = 3,442.62 × 978.51
4. Step 4: Simplify right side
   2,294.49x = 3,368,638.10
5. Step 5: Solve for x
   x = 3,368,638.10/2,294.49
6. Step 6: Final answer
   x = 1,468.14