Finding the Fourth Proportional to 1,743.57, 2,406.12 and 957.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.57 : 2,406.12 = 957.60 : x
2. Step 2: Convert to fraction form
   1,743.57/2,406.12 = 957.60/x
3. Step 3: Cross multiply
   1,743.57x = 2,406.12 × 957.60
4. Step 4: Simplify right side
   1,743.57x = 2,304,100.51
5. Step 5: Solve for x
   x = 2,304,100.51/1,743.57
6. Step 6: Final answer
   x = 1,321.48