Finding the Fourth Proportional to 1,444.69, 1,993.71 and 855.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,444.69 : 1,993.71 = 855.69 : x
2. Step 2: Convert to fraction form
   1,444.69/1,993.71 = 855.69/x
3. Step 3: Cross multiply
   1,444.69x = 1,993.71 × 855.69
4. Step 4: Simplify right side
   1,444.69x = 1,705,997.71
5. Step 5: Solve for x
   x = 1,705,997.71/1,444.69
6. Step 6: Final answer
   x = 1,180.87