Finding the Fourth Proportional to 2,363.94, 3,543.33 and 978.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.94 : 3,543.33 = 978.18 : x
2. Step 2: Convert to fraction form
   2,363.94/3,543.33 = 978.18/x
3. Step 3: Cross multiply
   2,363.94x = 3,543.33 × 978.18
4. Step 4: Simplify right side
   2,363.94x = 3,466,014.54
5. Step 5: Solve for x
   x = 3,466,014.54/2,363.94
6. Step 6: Final answer
   x = 1,466.20