Finding the Fourth Proportional to 1,076.82, 1,614.31 and 491.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.82 : 1,614.31 = 491.61 : x
2. Step 2: Convert to fraction form
   1,076.82/1,614.31 = 491.61/x
3. Step 3: Cross multiply
   1,076.82x = 1,614.31 × 491.61
4. Step 4: Simplify right side
   1,076.82x = 793,610.94
5. Step 5: Solve for x
   x = 793,610.94/1,076.82
6. Step 6: Final answer
   x = 736.99