Finding the Fourth Proportional to 3,039.89, 4,558.56 and 959.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,039.89 : 4,558.56 = 959.34 : x
2. Step 2: Convert to fraction form
   3,039.89/4,558.56 = 959.34/x
3. Step 3: Cross multiply
   3,039.89x = 4,558.56 × 959.34
4. Step 4: Simplify right side
   3,039.89x = 4,373,208.95
5. Step 5: Solve for x
   x = 4,373,208.95/3,039.89
6. Step 6: Final answer
   x = 1,438.61