Finding the Fourth Proportional to 1,404.52, 2,104.44 and 855.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.52 : 2,104.44 = 855.04 : x
2. Step 2: Convert to fraction form
   1,404.52/2,104.44 = 855.04/x
3. Step 3: Cross multiply
   1,404.52x = 2,104.44 × 855.04
4. Step 4: Simplify right side
   1,404.52x = 1,799,380.38
5. Step 5: Solve for x
   x = 1,799,380.38/1,404.52
6. Step 6: Final answer
   x = 1,281.14