Finding the Fourth Proportional to 2,013.73, 3,021.45 and 1,040.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.73 : 3,021.45 = 1,040.51 : x
2. Step 2: Convert to fraction form
   2,013.73/3,021.45 = 1,040.51/x
3. Step 3: Cross multiply
   2,013.73x = 3,021.45 × 1,040.51
4. Step 4: Simplify right side
   2,013.73x = 3,143,848.94
5. Step 5: Solve for x
   x = 3,143,848.94/2,013.73
6. Step 6: Final answer
   x = 1,561.21