Finding the Fourth Proportional to 2,635.94, 3,952.60 and 880.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.94 : 3,952.60 = 880.34 : x
2. Step 2: Convert to fraction form
   2,635.94/3,952.60 = 880.34/x
3. Step 3: Cross multiply
   2,635.94x = 3,952.60 × 880.34
4. Step 4: Simplify right side
   2,635.94x = 3,479,607.72
5. Step 5: Solve for x
   x = 3,479,607.72/2,635.94
6. Step 6: Final answer
   x = 1,320.07