Finding the Fourth Proportional to 2,865.86, 4,299.12 and 1,017.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,865.86 : 4,299.12 = 1,017.15 : x
2. Step 2: Convert to fraction form
   2,865.86/4,299.12 = 1,017.15/x
3. Step 3: Cross multiply
   2,865.86x = 4,299.12 × 1,017.15
4. Step 4: Simplify right side
   2,865.86x = 4,372,849.91
5. Step 5: Solve for x
   x = 4,372,849.91/2,865.86
6. Step 6: Final answer
   x = 1,525.84