Finding the Fourth Proportional to 1,103.55, 1,522.94 and 606.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.55 : 1,522.94 = 606.21 : x
2. Step 2: Convert to fraction form
   1,103.55/1,522.94 = 606.21/x
3. Step 3: Cross multiply
   1,103.55x = 1,522.94 × 606.21
4. Step 4: Simplify right side
   1,103.55x = 923,218.43
5. Step 5: Solve for x
   x = 923,218.43/1,103.55
6. Step 6: Final answer
   x = 836.59