Finding the Fourth Proportional to 1,105.61, 1,525.75 and 608.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.61 : 1,525.75 = 608.24 : x
2. Step 2: Convert to fraction form
   1,105.61/1,525.75 = 608.24/x
3. Step 3: Cross multiply
   1,105.61x = 1,525.75 × 608.24
4. Step 4: Simplify right side
   1,105.61x = 928,024.47
5. Step 5: Solve for x
   x = 928,024.47/1,105.61
6. Step 6: Final answer
   x = 839.38