Finding the Fourth Proportional to 2,043.81, 2,819.25 and 1,286.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.81 : 2,819.25 = 1,286.37 : x
2. Step 2: Convert to fraction form
   2,043.81/2,819.25 = 1,286.37/x
3. Step 3: Cross multiply
   2,043.81x = 2,819.25 × 1,286.37
4. Step 4: Simplify right side
   2,043.81x = 3,626,598.62
5. Step 5: Solve for x
   x = 3,626,598.62/2,043.81
6. Step 6: Final answer
   x = 1,774.43