Finding the Fourth Proportional to 2,383.42, 3,574.59 and 823.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,383.42 : 3,574.59 = 823.36 : x
2. Step 2: Convert to fraction form
   2,383.42/3,574.59 = 823.36/x
3. Step 3: Cross multiply
   2,383.42x = 3,574.59 × 823.36
4. Step 4: Simplify right side
   2,383.42x = 2,943,174.42
5. Step 5: Solve for x
   x = 2,943,174.42/2,383.42
6. Step 6: Final answer
   x = 1,234.85