Finding the Fourth Proportional to 1,066.57, 1,601.36 and 605.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.57 : 1,601.36 = 605.25 : x
2. Step 2: Convert to fraction form
   1,066.57/1,601.36 = 605.25/x
3. Step 3: Cross multiply
   1,066.57x = 1,601.36 × 605.25
4. Step 4: Simplify right side
   1,066.57x = 969,223.14
5. Step 5: Solve for x
   x = 969,223.14/1,066.57
6. Step 6: Final answer
   x = 908.73