Finding the Fourth Proportional to 2,281.50, 3,148.56 and 1,286.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,281.50 : 3,148.56 = 1,286.73 : x
2. Step 2: Convert to fraction form
   2,281.50/3,148.56 = 1,286.73/x
3. Step 3: Cross multiply
   2,281.50x = 3,148.56 × 1,286.73
4. Step 4: Simplify right side
   2,281.50x = 4,051,346.61
5. Step 5: Solve for x
   x = 4,051,346.61/2,281.50
6. Step 6: Final answer
   x = 1,775.74