Finding the Fourth Proportional to 2,635.28, 3,950.18 and 1,074.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.28 : 3,950.18 = 1,074.60 : x
2. Step 2: Convert to fraction form
   2,635.28/3,950.18 = 1,074.60/x
3. Step 3: Cross multiply
   2,635.28x = 3,950.18 × 1,074.60
4. Step 4: Simplify right side
   2,635.28x = 4,244,863.43
5. Step 5: Solve for x
   x = 4,244,863.43/2,635.28
6. Step 6: Final answer
   x = 1,610.78