Finding the Fourth Proportional to 2,124.33, 3,185.25 and 824.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.33 : 3,185.25 = 824.28 : x
2. Step 2: Convert to fraction form
   2,124.33/3,185.25 = 824.28/x
3. Step 3: Cross multiply
   2,124.33x = 3,185.25 × 824.28
4. Step 4: Simplify right side
   2,124.33x = 2,625,537.87
5. Step 5: Solve for x
   x = 2,625,537.87/2,124.33
6. Step 6: Final answer
   x = 1,235.94