Finding the Fourth Proportional to 2,942.38, 4,054.62 and 2,100.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.38 : 4,054.62 = 2,100.71 : x
2. Step 2: Convert to fraction form
   2,942.38/4,054.62 = 2,100.71/x
3. Step 3: Cross multiply
   2,942.38x = 4,054.62 × 2,100.71
4. Step 4: Simplify right side
   2,942.38x = 8,517,590.92
5. Step 5: Solve for x
   x = 8,517,590.92/2,942.38
6. Step 6: Final answer
   x = 2,894.80