Finding the Fourth Proportional to 1,518.72, 2,095.84 and 855.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,518.72 : 2,095.84 = 855.58 : x
2. Step 2: Convert to fraction form
   1,518.72/2,095.84 = 855.58/x
3. Step 3: Cross multiply
   1,518.72x = 2,095.84 × 855.58
4. Step 4: Simplify right side
   1,518.72x = 1,793,162.04
5. Step 5: Solve for x
   x = 1,793,162.04/1,518.72
6. Step 6: Final answer
   x = 1,180.70