Finding the Fourth Proportional to 2,584.49, 3,876.69 and 636.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,584.49 : 3,876.69 = 636.71 : x
2. Step 2: Convert to fraction form
   2,584.49/3,876.69 = 636.71/x
3. Step 3: Cross multiply
   2,584.49x = 3,876.69 × 636.71
4. Step 4: Simplify right side
   2,584.49x = 2,468,310.29
5. Step 5: Solve for x
   x = 2,468,310.29/2,584.49
6. Step 6: Final answer
   x = 955.05