Finding the Fourth Proportional to 1,105.93, 1,526.20 and 608.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.93 : 1,526.20 = 608.62 : x
2. Step 2: Convert to fraction form
   1,105.93/1,526.20 = 608.62/x
3. Step 3: Cross multiply
   1,105.93x = 1,526.20 × 608.62
4. Step 4: Simplify right side
   1,105.93x = 928,876.80
5. Step 5: Solve for x
   x = 928,876.80/1,105.93
6. Step 6: Final answer
   x = 839.90