Finding the Fourth Proportional to 1,518.89, 2,096.12 and 855.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,518.89 : 2,096.12 = 855.77 : x
2. Step 2: Convert to fraction form
   1,518.89/2,096.12 = 855.77/x
3. Step 3: Cross multiply
   1,518.89x = 2,096.12 × 855.77
4. Step 4: Simplify right side
   1,518.89x = 1,793,788.27
5. Step 5: Solve for x
   x = 1,793,788.27/1,518.89
6. Step 6: Final answer
   x = 1,180.99