Finding the Fourth Proportional to 1,518.59, 2,095.46 and 855.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,518.59 : 2,095.46 = 855.39 : x
2. Step 2: Convert to fraction form
   1,518.59/2,095.46 = 855.39/x
3. Step 3: Cross multiply
   1,518.59x = 2,095.46 × 855.39
4. Step 4: Simplify right side
   1,518.59x = 1,792,431.25
5. Step 5: Solve for x
   x = 1,792,431.25/1,518.59
6. Step 6: Final answer
   x = 1,180.33