Finding the Fourth Proportional to 2,939.09, 4,055.00 and 2,658.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,939.09 : 4,055.00 = 2,658.42 : x
2. Step 2: Convert to fraction form
   2,939.09/4,055.00 = 2,658.42/x
3. Step 3: Cross multiply
   2,939.09x = 4,055.00 × 2,658.42
4. Step 4: Simplify right side
   2,939.09x = 10,779,879.81
5. Step 5: Solve for x
   x = 10,779,879.81/2,939.09
6. Step 6: Final answer
   x = 3,667.77