Finding the Fourth Proportional to 1,963.89, 2,943.55 and 923.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,963.89 : 2,943.55 = 923.24 : x
2. Step 2: Convert to fraction form
   1,963.89/2,943.55 = 923.24/x
3. Step 3: Cross multiply
   1,963.89x = 2,943.55 × 923.24
4. Step 4: Simplify right side
   1,963.89x = 2,717,608.15
5. Step 5: Solve for x
   x = 2,717,608.15/1,963.89
6. Step 6: Final answer
   x = 1,383.79