Finding the Fourth Proportional to 1,017.10, 1,523.69 and 606.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.10 : 1,523.69 = 606.57 : x
2. Step 2: Convert to fraction form
   1,017.10/1,523.69 = 606.57/x
3. Step 3: Cross multiply
   1,017.10x = 1,523.69 × 606.57
4. Step 4: Simplify right side
   1,017.10x = 924,217.02
5. Step 5: Solve for x
   x = 924,217.02/1,017.10
6. Step 6: Final answer
   x = 908.68