Finding the Fourth Proportional to 1,518.81, 2,095.92 and 855.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,518.81 : 2,095.92 = 855.69 : x
2. Step 2: Convert to fraction form
   1,518.81/2,095.92 = 855.69/x
3. Step 3: Cross multiply
   1,518.81x = 2,095.92 × 855.69
4. Step 4: Simplify right side
   1,518.81x = 1,793,457.78
5. Step 5: Solve for x
   x = 1,793,457.78/1,518.81
6. Step 6: Final answer
   x = 1,180.83