Finding the Fourth Proportional to 1,443.52, 1,992.08 and 822.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.52 : 1,992.08 = 822.48 : x
2. Step 2: Convert to fraction form
   1,443.52/1,992.08 = 822.48/x
3. Step 3: Cross multiply
   1,443.52x = 1,992.08 × 822.48
4. Step 4: Simplify right side
   1,443.52x = 1,638,445.96
5. Step 5: Solve for x
   x = 1,638,445.96/1,443.52
6. Step 6: Final answer
   x = 1,135.04