Finding the Fourth Proportional to 3,013.59, 4,520.37 and 822.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,013.59 : 4,520.37 = 822.31 : x
2. Step 2: Convert to fraction form
   3,013.59/4,520.37 = 822.31/x
3. Step 3: Cross multiply
   3,013.59x = 4,520.37 × 822.31
4. Step 4: Simplify right side
   3,013.59x = 3,717,145.45
5. Step 5: Solve for x
   x = 3,717,145.45/3,013.59
6. Step 6: Final answer
   x = 1,233.46