Finding the Fourth Proportional to 1,105.77, 1,526.03 and 608.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.77 : 1,526.03 = 608.46 : x
2. Step 2: Convert to fraction form
   1,105.77/1,526.03 = 608.46/x
3. Step 3: Cross multiply
   1,105.77x = 1,526.03 × 608.46
4. Step 4: Simplify right side
   1,105.77x = 928,528.21
5. Step 5: Solve for x
   x = 928,528.21/1,105.77
6. Step 6: Final answer
   x = 839.71