Finding the Fourth Proportional to 1,743.24, 2,405.61 and 997.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.24 : 2,405.61 = 997.27 : x
2. Step 2: Convert to fraction form
   1,743.24/2,405.61 = 997.27/x
3. Step 3: Cross multiply
   1,743.24x = 2,405.61 × 997.27
4. Step 4: Simplify right side
   1,743.24x = 2,399,034.25
5. Step 5: Solve for x
   x = 2,399,034.25/1,743.24
6. Step 6: Final answer
   x = 1,376.19