Finding the Fourth Proportional to 2,277.16, 3,142.17 and 1,282.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,277.16 : 3,142.17 = 1,282.30 : x
2. Step 2: Convert to fraction form
   2,277.16/3,142.17 = 1,282.30/x
3. Step 3: Cross multiply
   2,277.16x = 3,142.17 × 1,282.30
4. Step 4: Simplify right side
   2,277.16x = 4,029,204.59
5. Step 5: Solve for x
   x = 4,029,204.59/2,277.16
6. Step 6: Final answer
   x = 1,769.40