Finding the Fourth Proportional to 2,874.86, 3,968.43 and 2,036.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.86 : 3,968.43 = 2,036.78 : x
2. Step 2: Convert to fraction form
   2,874.86/3,968.43 = 2,036.78/x
3. Step 3: Cross multiply
   2,874.86x = 3,968.43 × 2,036.78
4. Step 4: Simplify right side
   2,874.86x = 8,082,818.86
5. Step 5: Solve for x
   x = 8,082,818.86/2,874.86
6. Step 6: Final answer
   x = 2,811.55