Finding the Fourth Proportional to 3,912.67, 5,861.43 and 2,176.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,912.67 : 5,861.43 = 2,176.03 : x
2. Step 2: Convert to fraction form
   3,912.67/5,861.43 = 2,176.03/x
3. Step 3: Cross multiply
   3,912.67x = 5,861.43 × 2,176.03
4. Step 4: Simplify right side
   3,912.67x = 12,754,647.52
5. Step 5: Solve for x
   x = 12,754,647.52/3,912.67
6. Step 6: Final answer
   x = 3,259.83