Finding the Fourth Proportional to 2,866.02, 3,953.72 and 1,871.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.02 : 3,953.72 = 1,871.62 : x
2. Step 2: Convert to fraction form
   2,866.02/3,953.72 = 1,871.62/x
3. Step 3: Cross multiply
   2,866.02x = 3,953.72 × 1,871.62
4. Step 4: Simplify right side
   2,866.02x = 7,399,861.43
5. Step 5: Solve for x
   x = 7,399,861.43/2,866.02
6. Step 6: Final answer
   x = 2,581.93