Finding the Fourth Proportional to 1,518.71, 2,095.83 and 855.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,518.71 : 2,095.83 = 855.73 : x
2. Step 2: Convert to fraction form
   1,518.71/2,095.83 = 855.73/x
3. Step 3: Cross multiply
   1,518.71x = 2,095.83 × 855.73
4. Step 4: Simplify right side
   1,518.71x = 1,793,449.85
5. Step 5: Solve for x
   x = 1,793,449.85/1,518.71
6. Step 6: Final answer
   x = 1,180.90