Finding the Fourth Proportional to 2,870.96, 3,956.08 and 2,716

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.96 : 3,956.08 = 2,716 : x
2. Step 2: Convert to fraction form
   2,870.96/3,956.08 = 2,716/x
3. Step 3: Cross multiply
   2,870.96x = 3,956.08 × 2,716
4. Step 4: Simplify right side
   2,870.96x = 10,744,713.28
5. Step 5: Solve for x
   x = 10,744,713.28/2,870.96
6. Step 6: Final answer
   x = 3,742.55