Finding the Fourth Proportional to 2,833.05, 3,911.51 and 2,168.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,833.05 : 3,911.51 = 2,168.72 : x
2. Step 2: Convert to fraction form
   2,833.05/3,911.51 = 2,168.72/x
3. Step 3: Cross multiply
   2,833.05x = 3,911.51 × 2,168.72
4. Step 4: Simplify right side
   2,833.05x = 8,482,955.83
5. Step 5: Solve for x
   x = 8,482,955.83/2,833.05
6. Step 6: Final answer
   x = 2,994.28