Finding the Fourth Proportional to 2,895.94, 4,344.20 and 815.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,895.94 : 4,344.20 = 815.96 : x
2. Step 2: Convert to fraction form
   2,895.94/4,344.20 = 815.96/x
3. Step 3: Cross multiply
   2,895.94x = 4,344.20 × 815.96
4. Step 4: Simplify right side
   2,895.94x = 3,544,693.43
5. Step 5: Solve for x
   x = 3,544,693.43/2,895.94
6. Step 6: Final answer
   x = 1,224.02