Finding the Fourth Proportional to 1,103.91, 1,523.42 and 606.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.91 : 1,523.42 = 606.60 : x
2. Step 2: Convert to fraction form
   1,103.91/1,523.42 = 606.60/x
3. Step 3: Cross multiply
   1,103.91x = 1,523.42 × 606.60
4. Step 4: Simplify right side
   1,103.91x = 924,099.82
5. Step 5: Solve for x
   x = 924,099.82/1,103.91
6. Step 6: Final answer
   x = 837.11