Finding the Fourth Proportional to 1,105.92, 1,526.27 and 608.66

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.92 : 1,526.27 = 608.66 : x
2. Step 2: Convert to fraction form
   1,105.92/1,526.27 = 608.66/x
3. Step 3: Cross multiply
   1,105.92x = 1,526.27 × 608.66
4. Step 4: Simplify right side
   1,105.92x = 928,968.82
5. Step 5: Solve for x
   x = 928,968.82/1,105.92
6. Step 6: Final answer
   x = 840.00