Finding the Fourth Proportional to 2,284.73, 3,152.71 and 1,276.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.73 : 3,152.71 = 1,276.40 : x
2. Step 2: Convert to fraction form
   2,284.73/3,152.71 = 1,276.40/x
3. Step 3: Cross multiply
   2,284.73x = 3,152.71 × 1,276.40
4. Step 4: Simplify right side
   2,284.73x = 4,024,119.04
5. Step 5: Solve for x
   x = 4,024,119.04/2,284.73
6. Step 6: Final answer
   x = 1,761.31