Finding the Fourth Proportional to 1,443.52, 1,992.30 and 854.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.52 : 1,992.30 = 854.25 : x
2. Step 2: Convert to fraction form
   1,443.52/1,992.30 = 854.25/x
3. Step 3: Cross multiply
   1,443.52x = 1,992.30 × 854.25
4. Step 4: Simplify right side
   1,443.52x = 1,701,911.60
5. Step 5: Solve for x
   x = 1,701,911.60/1,443.52
6. Step 6: Final answer
   x = 1,179.00