Finding the Fourth Proportional to 2,284.62, 3,152.80 and 1,236.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.62 : 3,152.80 = 1,236.72 : x
2. Step 2: Convert to fraction form
   2,284.62/3,152.80 = 1,236.72/x
3. Step 3: Cross multiply
   2,284.62x = 3,152.80 × 1,236.72
4. Step 4: Simplify right side
   2,284.62x = 3,899,130.82
5. Step 5: Solve for x
   x = 3,899,130.82/2,284.62
6. Step 6: Final answer
   x = 1,706.69