Finding the Fourth Proportional to 2,276.49, 3,140.57 and 1,305.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.49 : 3,140.57 = 1,305.82 : x
2. Step 2: Convert to fraction form
   2,276.49/3,140.57 = 1,305.82/x
3. Step 3: Cross multiply
   2,276.49x = 3,140.57 × 1,305.82
4. Step 4: Simplify right side
   2,276.49x = 4,101,022.38
5. Step 5: Solve for x
   x = 4,101,022.38/2,276.49
6. Step 6: Final answer
   x = 1,801.47