Finding the Fourth Proportional to 1,443.72, 1,992.22 and 854.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.72 : 1,992.22 = 854.44 : x
2. Step 2: Convert to fraction form
   1,443.72/1,992.22 = 854.44/x
3. Step 3: Cross multiply
   1,443.72x = 1,992.22 × 854.44
4. Step 4: Simplify right side
   1,443.72x = 1,702,232.46
5. Step 5: Solve for x
   x = 1,702,232.46/1,443.72
6. Step 6: Final answer
   x = 1,179.06