Finding the Fourth Proportional to 1,744.72, 2,407.62 and 998.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,744.72 : 2,407.62 = 998.53 : x
2. Step 2: Convert to fraction form
   1,744.72/2,407.62 = 998.53/x
3. Step 3: Cross multiply
   1,744.72x = 2,407.62 × 998.53
4. Step 4: Simplify right side
   1,744.72x = 2,404,080.80
5. Step 5: Solve for x
   x = 2,404,080.80/1,744.72
6. Step 6: Final answer
   x = 1,377.92