Finding the Fourth Proportional to 1,744.56, 2,407.32 and 998.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,744.56 : 2,407.32 = 998.55 : x
2. Step 2: Convert to fraction form
   1,744.56/2,407.32 = 998.55/x
3. Step 3: Cross multiply
   1,744.56x = 2,407.32 × 998.55
4. Step 4: Simplify right side
   1,744.56x = 2,403,829.39
5. Step 5: Solve for x
   x = 2,403,829.39/1,744.56
6. Step 6: Final answer
   x = 1,377.90