Finding the Fourth Proportional to 1,743.69, 2,406.33 and 957.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.69 : 2,406.33 = 957.78 : x
2. Step 2: Convert to fraction form
   1,743.69/2,406.33 = 957.78/x
3. Step 3: Cross multiply
   1,743.69x = 2,406.33 × 957.78
4. Step 4: Simplify right side
   1,743.69x = 2,304,734.75
5. Step 5: Solve for x
   x = 2,304,734.75/1,743.69
6. Step 6: Final answer
   x = 1,321.76