Finding the Fourth Proportional to 3,485.52, 5,227.90 and 1,020.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485.52 : 5,227.90 = 1,020.36 : x
2. Step 2: Convert to fraction form
   3,485.52/5,227.90 = 1,020.36/x
3. Step 3: Cross multiply
   3,485.52x = 5,227.90 × 1,020.36
4. Step 4: Simplify right side
   3,485.52x = 5,334,357.10
5. Step 5: Solve for x
   x = 5,334,357.10/3,485.52
6. Step 6: Final answer
   x = 1,530.43