Finding the Fourth Proportional to 2,599.56, 3,900.30 and 957.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.56 : 3,900.30 = 957.18 : x
2. Step 2: Convert to fraction form
   2,599.56/3,900.30 = 957.18/x
3. Step 3: Cross multiply
   2,599.56x = 3,900.30 × 957.18
4. Step 4: Simplify right side
   2,599.56x = 3,733,289.15
5. Step 5: Solve for x
   x = 3,733,289.15/2,599.56
6. Step 6: Final answer
   x = 1,436.12