Finding the Fourth Proportional to 1,105.84, 1,526.06 and 608.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.84 : 1,526.06 = 608.51 : x
2. Step 2: Convert to fraction form
   1,105.84/1,526.06 = 608.51/x
3. Step 3: Cross multiply
   1,105.84x = 1,526.06 × 608.51
4. Step 4: Simplify right side
   1,105.84x = 928,616.31
5. Step 5: Solve for x
   x = 928,616.31/1,105.84
6. Step 6: Final answer
   x = 839.74