Finding the Fourth Proportional to 2,277.38, 3,142.86 and 1,282.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,277.38 : 3,142.86 = 1,282.86 : x
2. Step 2: Convert to fraction form
   2,277.38/3,142.86 = 1,282.86/x
3. Step 3: Cross multiply
   2,277.38x = 3,142.86 × 1,282.86
4. Step 4: Simplify right side
   2,277.38x = 4,031,849.38
5. Step 5: Solve for x
   x = 4,031,849.38/2,277.38
6. Step 6: Final answer
   x = 1,770.39