Finding the Fourth Proportional to 2,894.23, 4,340.89 and 814.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,894.23 : 4,340.89 = 814.02 : x
2. Step 2: Convert to fraction form
   2,894.23/4,340.89 = 814.02/x
3. Step 3: Cross multiply
   2,894.23x = 4,340.89 × 814.02
4. Step 4: Simplify right side
   2,894.23x = 3,533,571.28
5. Step 5: Solve for x
   x = 3,533,571.28/2,894.23
6. Step 6: Final answer
   x = 1,220.90