Finding the Fourth Proportional to 2,610.92, 3,916.37 and 636.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.92 : 3,916.37 = 636.53 : x
2. Step 2: Convert to fraction form
   2,610.92/3,916.37 = 636.53/x
3. Step 3: Cross multiply
   2,610.92x = 3,916.37 × 636.53
4. Step 4: Simplify right side
   2,610.92x = 2,492,865.82
5. Step 5: Solve for x
   x = 2,492,865.82/2,610.92
6. Step 6: Final answer
   x = 954.78