Finding the Fourth Proportional to 1,443.52, 1,992 and 854.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.52 : 1,992 = 854.04 : x
2. Step 2: Convert to fraction form
   1,443.52/1,992 = 854.04/x
3. Step 3: Cross multiply
   1,443.52x = 1,992 × 854.04
4. Step 4: Simplify right side
   1,443.52x = 1,701,247.68
5. Step 5: Solve for x
   x = 1,701,247.68/1,443.52
6. Step 6: Final answer
   x = 1,178.54