Finding the Fourth Proportional to 1,518.63, 2,095.72 and 855.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,518.63 : 2,095.72 = 855.45 : x
2. Step 2: Convert to fraction form
   1,518.63/2,095.72 = 855.45/x
3. Step 3: Cross multiply
   1,518.63x = 2,095.72 × 855.45
4. Step 4: Simplify right side
   1,518.63x = 1,792,783.67
5. Step 5: Solve for x
   x = 1,792,783.67/1,518.63
6. Step 6: Final answer
   x = 1,180.53