Finding the Fourth Proportional to 2,277.98, 3,143.46 and 1,283.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,277.98 : 3,143.46 = 1,283.30 : x
2. Step 2: Convert to fraction form
   2,277.98/3,143.46 = 1,283.30/x
3. Step 3: Cross multiply
   2,277.98x = 3,143.46 × 1,283.30
4. Step 4: Simplify right side
   2,277.98x = 4,034,002.22
5. Step 5: Solve for x
   x = 4,034,002.22/2,277.98
6. Step 6: Final answer
   x = 1,770.87