Finding the Fourth Proportional to 2,363.05, 3,545.16 and 976.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.05 : 3,545.16 = 976.78 : x
2. Step 2: Convert to fraction form
   2,363.05/3,545.16 = 976.78/x
3. Step 3: Cross multiply
   2,363.05x = 3,545.16 × 976.78
4. Step 4: Simplify right side
   2,363.05x = 3,462,846.58
5. Step 5: Solve for x
   x = 3,462,846.58/2,363.05
6. Step 6: Final answer
   x = 1,465.42