Finding the Fourth Proportional to 3,426.01, 5,138.60 and 960.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426.01 : 5,138.60 = 960.59 : x
2. Step 2: Convert to fraction form
   3,426.01/5,138.60 = 960.59/x
3. Step 3: Cross multiply
   3,426.01x = 5,138.60 × 960.59
4. Step 4: Simplify right side
   3,426.01x = 4,936,087.77
5. Step 5: Solve for x
   x = 4,936,087.77/3,426.01
6. Step 6: Final answer
   x = 1,440.77