Finding the Fourth Proportional to 2,601.53, 3,900.47 and 957.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.53 : 3,900.47 = 957.86 : x
2. Step 2: Convert to fraction form
   2,601.53/3,900.47 = 957.86/x
3. Step 3: Cross multiply
   2,601.53x = 3,900.47 × 957.86
4. Step 4: Simplify right side
   2,601.53x = 3,736,099.40
5. Step 5: Solve for x
   x = 3,736,099.40/2,601.53
6. Step 6: Final answer
   x = 1,436.12