Finding the Fourth Proportional to 3,618.28, 5,426.82 and 1,020.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618.28 : 5,426.82 = 1,020.52 : x
2. Step 2: Convert to fraction form
   3,618.28/5,426.82 = 1,020.52/x
3. Step 3: Cross multiply
   3,618.28x = 5,426.82 × 1,020.52
4. Step 4: Simplify right side
   3,618.28x = 5,538,178.35
5. Step 5: Solve for x
   x = 5,538,178.35/3,618.28
6. Step 6: Final answer
   x = 1,530.61