Finding the Fourth Proportional to 2,819.57, 3,866.76 and 2,701.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819.57 : 3,866.76 = 2,701.31 : x
2. Step 2: Convert to fraction form
   2,819.57/3,866.76 = 2,701.31/x
3. Step 3: Cross multiply
   2,819.57x = 3,866.76 × 2,701.31
4. Step 4: Simplify right side
   2,819.57x = 10,445,298.12
5. Step 5: Solve for x
   x = 10,445,298.12/2,819.57
6. Step 6: Final answer
   x = 3,704.58