Finding the Fourth Proportional to 1,105.52, 1,525.62 and 608.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.52 : 1,525.62 = 608.18 : x
2. Step 2: Convert to fraction form
   1,105.52/1,525.62 = 608.18/x
3. Step 3: Cross multiply
   1,105.52x = 1,525.62 × 608.18
4. Step 4: Simplify right side
   1,105.52x = 927,843.94
5. Step 5: Solve for x
   x = 927,843.94/1,105.52
6. Step 6: Final answer
   x = 839.29