Finding the Fourth Proportional to 2,073.92, 2,861.88 and 1,142.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.92 : 2,861.88 = 1,142.42 : x
2. Step 2: Convert to fraction form
   2,073.92/2,861.88 = 1,142.42/x
3. Step 3: Cross multiply
   2,073.92x = 2,861.88 × 1,142.42
4. Step 4: Simplify right side
   2,073.92x = 3,269,468.95
5. Step 5: Solve for x
   x = 3,269,468.95/2,073.92
6. Step 6: Final answer
   x = 1,576.47