Finding the Fourth Proportional to 2,863.50, 4,295.86 and 889.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,863.50 : 4,295.86 = 889.09 : x
2. Step 2: Convert to fraction form
   2,863.50/4,295.86 = 889.09/x
3. Step 3: Cross multiply
   2,863.50x = 4,295.86 × 889.09
4. Step 4: Simplify right side
   2,863.50x = 3,819,406.17
5. Step 5: Solve for x
   x = 3,819,406.17/2,863.50
6. Step 6: Final answer
   x = 1,333.82