Finding the Fourth Proportional to 1,518.79, 2,096.04 and 855.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,518.79 : 2,096.04 = 855.71 : x
2. Step 2: Convert to fraction form
   1,518.79/2,096.04 = 855.71/x
3. Step 3: Cross multiply
   1,518.79x = 2,096.04 × 855.71
4. Step 4: Simplify right side
   1,518.79x = 1,793,602.39
5. Step 5: Solve for x
   x = 1,793,602.39/1,518.79
6. Step 6: Final answer
   x = 1,180.94