Finding the Fourth Proportional to 2,936.38, 4,403.27 and 2,111.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,936.38 : 4,403.27 = 2,111.20 : x
2. Step 2: Convert to fraction form
   2,936.38/4,403.27 = 2,111.20/x
3. Step 3: Cross multiply
   2,936.38x = 4,403.27 × 2,111.20
4. Step 4: Simplify right side
   2,936.38x = 9,296,196.72
5. Step 5: Solve for x
   x = 9,296,196.72/2,936.38
6. Step 6: Final answer
   x = 3,165.87