Finding the Fourth Proportional to 2,872.79, 4,291.71 and 1,824.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,872.79 : 4,291.71 = 1,824.38 : x
2. Step 2: Convert to fraction form
   2,872.79/4,291.71 = 1,824.38/x
3. Step 3: Cross multiply
   2,872.79x = 4,291.71 × 1,824.38
4. Step 4: Simplify right side
   2,872.79x = 7,829,709.89
5. Step 5: Solve for x
   x = 7,829,709.89/2,872.79
6. Step 6: Final answer
   x = 2,725.47