Finding the Fourth Proportional to 2,871.46, 3,962.81 and 1,928.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,871.46 : 3,962.81 = 1,928.83 : x
2. Step 2: Convert to fraction form
   2,871.46/3,962.81 = 1,928.83/x
3. Step 3: Cross multiply
   2,871.46x = 3,962.81 × 1,928.83
4. Step 4: Simplify right side
   2,871.46x = 7,643,586.81
5. Step 5: Solve for x
   x = 7,643,586.81/2,871.46
6. Step 6: Final answer
   x = 2,661.92