Finding the Fourth Proportional to 2,860.86, 3,951.27 and 2,196.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,860.86 : 3,951.27 = 2,196.30 : x
2. Step 2: Convert to fraction form
   2,860.86/3,951.27 = 2,196.30/x
3. Step 3: Cross multiply
   2,860.86x = 3,951.27 × 2,196.30
4. Step 4: Simplify right side
   2,860.86x = 8,678,174.30
5. Step 5: Solve for x
   x = 8,678,174.30/2,860.86
6. Step 6: Final answer
   x = 3,033.41