Finding the Fourth Proportional to 2,815.94, 4,223.98 and 868.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,815.94 : 4,223.98 = 868.14 : x
2. Step 2: Convert to fraction form
   2,815.94/4,223.98 = 868.14/x
3. Step 3: Cross multiply
   2,815.94x = 4,223.98 × 868.14
4. Step 4: Simplify right side
   2,815.94x = 3,667,006.00
5. Step 5: Solve for x
   x = 3,667,006.00/2,815.94
6. Step 6: Final answer
   x = 1,302.23