Finding the Fourth Proportional to 2,281.04, 3,147.71 and 1,286.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,281.04 : 3,147.71 = 1,286.37 : x
2. Step 2: Convert to fraction form
   2,281.04/3,147.71 = 1,286.37/x
3. Step 3: Cross multiply
   2,281.04x = 3,147.71 × 1,286.37
4. Step 4: Simplify right side
   2,281.04x = 4,049,113.28
5. Step 5: Solve for x
   x = 4,049,113.28/2,281.04
6. Step 6: Final answer
   x = 1,775.12