Finding the Fourth Proportional to 1,105.54, 1,525.58 and 608.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.54 : 1,525.58 = 608.16 : x
2. Step 2: Convert to fraction form
   1,105.54/1,525.58 = 608.16/x
3. Step 3: Cross multiply
   1,105.54x = 1,525.58 × 608.16
4. Step 4: Simplify right side
   1,105.54x = 927,796.73
5. Step 5: Solve for x
   x = 927,796.73/1,105.54
6. Step 6: Final answer
   x = 839.22