Finding the Fourth Proportional to 2,379.92, 3,567.92 and 994.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.92 : 3,567.92 = 994.28 : x
2. Step 2: Convert to fraction form
   2,379.92/3,567.92 = 994.28/x
3. Step 3: Cross multiply
   2,379.92x = 3,567.92 × 994.28
4. Step 4: Simplify right side
   2,379.92x = 3,547,488.69
5. Step 5: Solve for x
   x = 3,547,488.69/2,379.92
6. Step 6: Final answer
   x = 1,490.59