Finding the Fourth Proportional to 1,743.72, 2,406.07 and 997.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.72 : 2,406.07 = 997.51 : x
2. Step 2: Convert to fraction form
   1,743.72/2,406.07 = 997.51/x
3. Step 3: Cross multiply
   1,743.72x = 2,406.07 × 997.51
4. Step 4: Simplify right side
   1,743.72x = 2,400,061.87
5. Step 5: Solve for x
   x = 2,400,061.87/1,743.72
6. Step 6: Final answer
   x = 1,376.41