Finding the Fourth Proportional to 2,656, 3,984.58 and 1,012.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656 : 3,984.58 = 1,012.55 : x
2. Step 2: Convert to fraction form
   2,656/3,984.58 = 1,012.55/x
3. Step 3: Cross multiply
   2,656x = 3,984.58 × 1,012.55
4. Step 4: Simplify right side
   2,656x = 4,034,586.48
5. Step 5: Solve for x
   x = 4,034,586.48/2,656
6. Step 6: Final answer
   x = 1,519.05