Finding the Fourth Proportional to 2,861.61, 3,956.24 and 2,114.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,861.61 : 3,956.24 = 2,114.38 : x
2. Step 2: Convert to fraction form
   2,861.61/3,956.24 = 2,114.38/x
3. Step 3: Cross multiply
   2,861.61x = 3,956.24 × 2,114.38
4. Step 4: Simplify right side
   2,861.61x = 8,364,994.73
5. Step 5: Solve for x
   x = 8,364,994.73/2,861.61
6. Step 6: Final answer
   x = 2,923.18