Finding the Fourth Proportional to 2,012.62, 3,016.48 and 855.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.62 : 3,016.48 = 855.94 : x
2. Step 2: Convert to fraction form
   2,012.62/3,016.48 = 855.94/x
3. Step 3: Cross multiply
   2,012.62x = 3,016.48 × 855.94
4. Step 4: Simplify right side
   2,012.62x = 2,581,925.89
5. Step 5: Solve for x
   x = 2,581,925.89/2,012.62
6. Step 6: Final answer
   x = 1,282.87