Finding the Fourth Proportional to 2,942.15, 4,055.87 and 2,101.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.15 : 4,055.87 = 2,101.37 : x
2. Step 2: Convert to fraction form
   2,942.15/4,055.87 = 2,101.37/x
3. Step 3: Cross multiply
   2,942.15x = 4,055.87 × 2,101.37
4. Step 4: Simplify right side
   2,942.15x = 8,522,868.52
5. Step 5: Solve for x
   x = 8,522,868.52/2,942.15
6. Step 6: Final answer
   x = 2,896.82