Finding the Fourth Proportional to 1,017.10, 1,525.83 and 323.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.10 : 1,525.83 = 323.59 : x
2. Step 2: Convert to fraction form
   1,017.10/1,525.83 = 323.59/x
3. Step 3: Cross multiply
   1,017.10x = 1,525.83 × 323.59
4. Step 4: Simplify right side
   1,017.10x = 493,743.33
5. Step 5: Solve for x
   x = 493,743.33/1,017.10
6. Step 6: Final answer
   x = 485.44