Finding the Fourth Proportional to 2,877.96, 4,322.71 and 2,783.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.96 : 4,322.71 = 2,783.39 : x
2. Step 2: Convert to fraction form
   2,877.96/4,322.71 = 2,783.39/x
3. Step 3: Cross multiply
   2,877.96x = 4,322.71 × 2,783.39
4. Step 4: Simplify right side
   2,877.96x = 12,031,787.79
5. Step 5: Solve for x
   x = 12,031,787.79/2,877.96
6. Step 6: Final answer
   x = 4,180.67