Finding the Fourth Proportional to 1,105.42, 1,525.52 and 608.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.42 : 1,525.52 = 608.08 : x
2. Step 2: Convert to fraction form
   1,105.42/1,525.52 = 608.08/x
3. Step 3: Cross multiply
   1,105.42x = 1,525.52 × 608.08
4. Step 4: Simplify right side
   1,105.42x = 927,638.20
5. Step 5: Solve for x
   x = 927,638.20/1,105.42
6. Step 6: Final answer
   x = 839.17