Finding the Fourth Proportional to 2,601.33, 3,900.17 and 957.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.33 : 3,900.17 = 957.66 : x
2. Step 2: Convert to fraction form
   2,601.33/3,900.17 = 957.66/x
3. Step 3: Cross multiply
   2,601.33x = 3,900.17 × 957.66
4. Step 4: Simplify right side
   2,601.33x = 3,735,012.51
5. Step 5: Solve for x
   x = 3,735,012.51/2,601.33
6. Step 6: Final answer
   x = 1,435.81