Finding the Fourth Proportional to 1,414.55, 1,951.77 and 855.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,414.55 : 1,951.77 = 855.01 : x
2. Step 2: Convert to fraction form
   1,414.55/1,951.77 = 855.01/x
3. Step 3: Cross multiply
   1,414.55x = 1,951.77 × 855.01
4. Step 4: Simplify right side
   1,414.55x = 1,668,788.51
5. Step 5: Solve for x
   x = 1,668,788.51/1,414.55
6. Step 6: Final answer
   x = 1,179.73