Finding the Fourth Proportional to 2,271.96, 3,411.27 and 1,986.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.96 : 3,411.27 = 1,986.84 : x
2. Step 2: Convert to fraction form
   2,271.96/3,411.27 = 1,986.84/x
3. Step 3: Cross multiply
   2,271.96x = 3,411.27 × 1,986.84
4. Step 4: Simplify right side
   2,271.96x = 6,777,647.69
5. Step 5: Solve for x
   x = 6,777,647.69/2,271.96
6. Step 6: Final answer
   x = 2,983.17