Finding the Fourth Proportional to 1,444.48, 1,993.90 and 855.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,444.48 : 1,993.90 = 855.02 : x
2. Step 2: Convert to fraction form
   1,444.48/1,993.90 = 855.02/x
3. Step 3: Cross multiply
   1,444.48x = 1,993.90 × 855.02
4. Step 4: Simplify right side
   1,444.48x = 1,704,824.38
5. Step 5: Solve for x
   x = 1,704,824.38/1,444.48
6. Step 6: Final answer
   x = 1,180.23