Finding the Fourth Proportional to 2,789.78, 4,168.73 and 2,006.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.78 : 4,168.73 = 2,006.10 : x
2. Step 2: Convert to fraction form
   2,789.78/4,168.73 = 2,006.10/x
3. Step 3: Cross multiply
   2,789.78x = 4,168.73 × 2,006.10
4. Step 4: Simplify right side
   2,789.78x = 8,362,894.27
5. Step 5: Solve for x
   x = 8,362,894.27/2,789.78
6. Step 6: Final answer
   x = 2,997.69