Finding the Fourth Proportional to 2,754.13, 4,128.69 and 998.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,754.13 : 4,128.69 = 998.73 : x
2. Step 2: Convert to fraction form
   2,754.13/4,128.69 = 998.73/x
3. Step 3: Cross multiply
   2,754.13x = 4,128.69 × 998.73
4. Step 4: Simplify right side
   2,754.13x = 4,123,446.56
5. Step 5: Solve for x
   x = 4,123,446.56/2,754.13
6. Step 6: Final answer
   x = 1,497.19