Finding the Fourth Proportional to 2,863.50, 4,297.17 and 1,039.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,863.50 : 4,297.17 = 1,039.50 : x
2. Step 2: Convert to fraction form
   2,863.50/4,297.17 = 1,039.50/x
3. Step 3: Cross multiply
   2,863.50x = 4,297.17 × 1,039.50
4. Step 4: Simplify right side
   2,863.50x = 4,466,908.22
5. Step 5: Solve for x
   x = 4,466,908.22/2,863.50
6. Step 6: Final answer
   x = 1,559.95