Finding the Fourth Proportional to 1,081.30, 1,491.63 and 682.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.30 : 1,491.63 = 682.82 : x
2. Step 2: Convert to fraction form
   1,081.30/1,491.63 = 682.82/x
3. Step 3: Cross multiply
   1,081.30x = 1,491.63 × 682.82
4. Step 4: Simplify right side
   1,081.30x = 1,018,515.73
5. Step 5: Solve for x
   x = 1,018,515.73/1,081.30
6. Step 6: Final answer
   x = 941.94