Finding the Fourth Proportional to 2,815.72, 3,877.86 and 2,596.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,815.72 : 3,877.86 = 2,596.84 : x
2. Step 2: Convert to fraction form
   2,815.72/3,877.86 = 2,596.84/x
3. Step 3: Cross multiply
   2,815.72x = 3,877.86 × 2,596.84
4. Step 4: Simplify right side
   2,815.72x = 10,070,181.96
5. Step 5: Solve for x
   x = 10,070,181.96/2,815.72
6. Step 6: Final answer
   x = 3,576.41