Finding the Fourth Proportional to 1,518.35, 2,095.31 and 855.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,518.35 : 2,095.31 = 855.41 : x
2. Step 2: Convert to fraction form
   1,518.35/2,095.31 = 855.41/x
3. Step 3: Cross multiply
   1,518.35x = 2,095.31 × 855.41
4. Step 4: Simplify right side
   1,518.35x = 1,792,356.50
5. Step 5: Solve for x
   x = 1,792,356.50/1,518.35
6. Step 6: Final answer
   x = 1,180.46