Finding the Fourth Proportional to 2,864.50, 4,298.67 and 1,040.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,864.50 : 4,298.67 = 1,040.50 : x
2. Step 2: Convert to fraction form
   2,864.50/4,298.67 = 1,040.50/x
3. Step 3: Cross multiply
   2,864.50x = 4,298.67 × 1,040.50
4. Step 4: Simplify right side
   2,864.50x = 4,472,766.14
5. Step 5: Solve for x
   x = 4,472,766.14/2,864.50
6. Step 6: Final answer
   x = 1,561.45