Finding the Fourth Proportional to 3,617.28, 5,426.12 and 1,020.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,617.28 : 5,426.12 = 1,020.42 : x
2. Step 2: Convert to fraction form
   3,617.28/5,426.12 = 1,020.42/x
3. Step 3: Cross multiply
   3,617.28x = 5,426.12 × 1,020.42
4. Step 4: Simplify right side
   3,617.28x = 5,536,921.37
5. Step 5: Solve for x
   x = 5,536,921.37/3,617.28
6. Step 6: Final answer
   x = 1,530.69