Finding the Fourth Proportional to 2,768.42, 4,150.14 and 1,012.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.42 : 4,150.14 = 1,012.20 : x
2. Step 2: Convert to fraction form
   2,768.42/4,150.14 = 1,012.20/x
3. Step 3: Cross multiply
   2,768.42x = 4,150.14 × 1,012.20
4. Step 4: Simplify right side
   2,768.42x = 4,200,758.04
5. Step 5: Solve for x
   x = 4,200,758.04/2,768.42
6. Step 6: Final answer
   x = 1,517.38