Finding the Fourth Proportional to 1,986.82, 2,981.59 and 892.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.82 : 2,981.59 = 892.41 : x
2. Step 2: Convert to fraction form
   1,986.82/2,981.59 = 892.41/x
3. Step 3: Cross multiply
   1,986.82x = 2,981.59 × 892.41
4. Step 4: Simplify right side
   1,986.82x = 2,660,800.73
5. Step 5: Solve for x
   x = 2,660,800.73/1,986.82
6. Step 6: Final answer
   x = 1,339.23