Finding the Fourth Proportional to 2,073.71, 2,861.71 and 1,142.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.71 : 2,861.71 = 1,142.21 : x
2. Step 2: Convert to fraction form
   2,073.71/2,861.71 = 1,142.21/x
3. Step 3: Cross multiply
   2,073.71x = 2,861.71 × 1,142.21
4. Step 4: Simplify right side
   2,073.71x = 3,268,673.78
5. Step 5: Solve for x
   x = 3,268,673.78/2,073.71
6. Step 6: Final answer
   x = 1,576.24