Finding the Fourth Proportional to 1,744.53, 2,407.51 and 998.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,744.53 : 2,407.51 = 998.57 : x
2. Step 2: Convert to fraction form
   1,744.53/2,407.51 = 998.57/x
3. Step 3: Cross multiply
   1,744.53x = 2,407.51 × 998.57
4. Step 4: Simplify right side
   1,744.53x = 2,404,062.27
5. Step 5: Solve for x
   x = 2,404,062.27/1,744.53
6. Step 6: Final answer
   x = 1,378.06