Finding the Fourth Proportional to 2,229.93, 3,078.71 and 1,433.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.93 : 3,078.71 = 1,433.61 : x
2. Step 2: Convert to fraction form
   2,229.93/3,078.71 = 1,433.61/x
3. Step 3: Cross multiply
   2,229.93x = 3,078.71 × 1,433.61
4. Step 4: Simplify right side
   2,229.93x = 4,413,662.28
5. Step 5: Solve for x
   x = 4,413,662.28/2,229.93
6. Step 6: Final answer
   x = 1,979.28