Finding the Fourth Proportional to 2,940.23, 4,411.01 and 992.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,940.23 : 4,411.01 = 992.38 : x
2. Step 2: Convert to fraction form
   2,940.23/4,411.01 = 992.38/x
3. Step 3: Cross multiply
   2,940.23x = 4,411.01 × 992.38
4. Step 4: Simplify right side
   2,940.23x = 4,377,398.10
5. Step 5: Solve for x
   x = 4,377,398.10/2,940.23
6. Step 6: Final answer
   x = 1,488.79