Finding the Fourth Proportional to 2,956.10, 4,080.27 and 2,072.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,956.10 : 4,080.27 = 2,072.12 : x
2. Step 2: Convert to fraction form
   2,956.10/4,080.27 = 2,072.12/x
3. Step 3: Cross multiply
   2,956.10x = 4,080.27 × 2,072.12
4. Step 4: Simplify right side
   2,956.10x = 8,454,809.07
5. Step 5: Solve for x
   x = 8,454,809.07/2,956.10
6. Step 6: Final answer
   x = 2,860.12