Finding the Fourth Proportional to 2,872.89, 4,335.17 and 2,769.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,872.89 : 4,335.17 = 2,769.93 : x
2. Step 2: Convert to fraction form
   2,872.89/4,335.17 = 2,769.93/x
3. Step 3: Cross multiply
   2,872.89x = 4,335.17 × 2,769.93
4. Step 4: Simplify right side
   2,872.89x = 12,008,103.59
5. Step 5: Solve for x
   x = 12,008,103.59/2,872.89
6. Step 6: Final answer
   x = 4,179.80