Finding the Fourth Proportional to 1,443.50, 1,992.04 and 822.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.50 : 1,992.04 = 822.50 : x
2. Step 2: Convert to fraction form
   1,443.50/1,992.04 = 822.50/x
3. Step 3: Cross multiply
   1,443.50x = 1,992.04 × 822.50
4. Step 4: Simplify right side
   1,443.50x = 1,638,452.90
5. Step 5: Solve for x
   x = 1,638,452.90/1,443.50
6. Step 6: Final answer
   x = 1,135.06