Finding the Fourth Proportional to 1,103.18, 1,522.31 and 605.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.18 : 1,522.31 = 605.75 : x
2. Step 2: Convert to fraction form
   1,103.18/1,522.31 = 605.75/x
3. Step 3: Cross multiply
   1,103.18x = 1,522.31 × 605.75
4. Step 4: Simplify right side
   1,103.18x = 922,128.64
5. Step 5: Solve for x
   x = 922,128.64/1,103.18
6. Step 6: Final answer
   x = 835.89