Finding the Fourth Proportional to 1,103.56, 1,522.91 and 606.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.56 : 1,522.91 = 606.20 : x
2. Step 2: Convert to fraction form
   1,103.56/1,522.91 = 606.20/x
3. Step 3: Cross multiply
   1,103.56x = 1,522.91 × 606.20
4. Step 4: Simplify right side
   1,103.56x = 923,181.94
5. Step 5: Solve for x
   x = 923,181.94/1,103.56
6. Step 6: Final answer
   x = 836.55