Finding the Fourth Proportional to 2,635.43, 3,951.77 and 1,317.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.43 : 3,951.77 = 1,317.76 : x
2. Step 2: Convert to fraction form
   2,635.43/3,951.77 = 1,317.76/x
3. Step 3: Cross multiply
   2,635.43x = 3,951.77 × 1,317.76
4. Step 4: Simplify right side
   2,635.43x = 5,207,475.38
5. Step 5: Solve for x
   x = 5,207,475.38/2,635.43
6. Step 6: Final answer
   x = 1,975.95