Finding the Fourth Proportional to 2,284.71, 3,152.91 and 1,236.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.71 : 3,152.91 = 1,236.78 : x
2. Step 2: Convert to fraction form
   2,284.71/3,152.91 = 1,236.78/x
3. Step 3: Cross multiply
   2,284.71x = 3,152.91 × 1,236.78
4. Step 4: Simplify right side
   2,284.71x = 3,899,456.03
5. Step 5: Solve for x
   x = 3,899,456.03/2,284.71
6. Step 6: Final answer
   x = 1,706.76