Finding the Fourth Proportional to 2,829.96, 3,903.30 and 2,786.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,829.96 : 3,903.30 = 2,786.76 : x
2. Step 2: Convert to fraction form
   2,829.96/3,903.30 = 2,786.76/x
3. Step 3: Cross multiply
   2,829.96x = 3,903.30 × 2,786.76
4. Step 4: Simplify right side
   2,829.96x = 10,877,560.31
5. Step 5: Solve for x
   x = 10,877,560.31/2,829.96
6. Step 6: Final answer
   x = 3,843.72