Finding the Fourth Proportional to 1,103.10, 1,522.29 and 605.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.10 : 1,522.29 = 605.78 : x
2. Step 2: Convert to fraction form
   1,103.10/1,522.29 = 605.78/x
3. Step 3: Cross multiply
   1,103.10x = 1,522.29 × 605.78
4. Step 4: Simplify right side
   1,103.10x = 922,178.36
5. Step 5: Solve for x
   x = 922,178.36/1,103.10
6. Step 6: Final answer
   x = 835.99