Finding the Fourth Proportional to 1,105.87, 1,526.01 and 608.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.87 : 1,526.01 = 608.55 : x
2. Step 2: Convert to fraction form
   1,105.87/1,526.01 = 608.55/x
3. Step 3: Cross multiply
   1,105.87x = 1,526.01 × 608.55
4. Step 4: Simplify right side
   1,105.87x = 928,653.39
5. Step 5: Solve for x
   x = 928,653.39/1,105.87
6. Step 6: Final answer
   x = 839.75