Finding the Fourth Proportional to 3,615.28, 5,423.11 and 1,018.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,615.28 : 5,423.11 = 1,018.42 : x
2. Step 2: Convert to fraction form
   3,615.28/5,423.11 = 1,018.42/x
3. Step 3: Cross multiply
   3,615.28x = 5,423.11 × 1,018.42
4. Step 4: Simplify right side
   3,615.28x = 5,523,003.69
5. Step 5: Solve for x
   x = 5,523,003.69/3,615.28
6. Step 6: Final answer
   x = 1,527.68