Finding the Fourth Proportional to 3,150.15, 4,725.90 and 959.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,150.15 : 4,725.90 = 959.10 : x
2. Step 2: Convert to fraction form
   3,150.15/4,725.90 = 959.10/x
3. Step 3: Cross multiply
   3,150.15x = 4,725.90 × 959.10
4. Step 4: Simplify right side
   3,150.15x = 4,532,610.69
5. Step 5: Solve for x
   x = 4,532,610.69/3,150.15
6. Step 6: Final answer
   x = 1,438.86