Finding the Fourth Proportional to 2,612.38, 3,936.22 and 2,160.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.38 : 3,936.22 = 2,160.28 : x
2. Step 2: Convert to fraction form
   2,612.38/3,936.22 = 2,160.28/x
3. Step 3: Cross multiply
   2,612.38x = 3,936.22 × 2,160.28
4. Step 4: Simplify right side
   2,612.38x = 8,503,337.34
5. Step 5: Solve for x
   x = 8,503,337.34/2,612.38
6. Step 6: Final answer
   x = 3,255.02