Finding the Fourth Proportional to 1,105.67, 1,525.86 and 608.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.67 : 1,525.86 = 608.35 : x
2. Step 2: Convert to fraction form
   1,105.67/1,525.86 = 608.35/x
3. Step 3: Cross multiply
   1,105.67x = 1,525.86 × 608.35
4. Step 4: Simplify right side
   1,105.67x = 928,256.93
5. Step 5: Solve for x
   x = 928,256.93/1,105.67
6. Step 6: Final answer
   x = 839.54