Finding the Fourth Proportional to 1,016.10, 1,522.19 and 605.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.10 : 1,522.19 = 605.57 : x
2. Step 2: Convert to fraction form
   1,016.10/1,522.19 = 605.57/x
3. Step 3: Cross multiply
   1,016.10x = 1,522.19 × 605.57
4. Step 4: Simplify right side
   1,016.10x = 921,786.50
5. Step 5: Solve for x
   x = 921,786.50/1,016.10
6. Step 6: Final answer
   x = 907.18