Finding the Fourth Proportional to 2,014.80, 3,022.56 and 860.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.80 : 3,022.56 = 860.52 : x
2. Step 2: Convert to fraction form
   2,014.80/3,022.56 = 860.52/x
3. Step 3: Cross multiply
   2,014.80x = 3,022.56 × 860.52
4. Step 4: Simplify right side
   2,014.80x = 2,600,973.33
5. Step 5: Solve for x
   x = 2,600,973.33/2,014.80
6. Step 6: Final answer
   x = 1,290.93