Finding the Fourth Proportional to 2,871.05, 4,307.01 and 2,713.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,871.05 : 4,307.01 = 2,713.50 : x
2. Step 2: Convert to fraction form
   2,871.05/4,307.01 = 2,713.50/x
3. Step 3: Cross multiply
   2,871.05x = 4,307.01 × 2,713.50
4. Step 4: Simplify right side
   2,871.05x = 11,687,061.46
5. Step 5: Solve for x
   x = 11,687,061.46/2,871.05
6. Step 6: Final answer
   x = 4,070.66