Finding the Fourth Proportional to 2,488.40, 3,726.96 and 2,061.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.40 : 3,726.96 = 2,061.33 : x
2. Step 2: Convert to fraction form
   2,488.40/3,726.96 = 2,061.33/x
3. Step 3: Cross multiply
   2,488.40x = 3,726.96 × 2,061.33
4. Step 4: Simplify right side
   2,488.40x = 7,682,494.46
5. Step 5: Solve for x
   x = 7,682,494.46/2,488.40
6. Step 6: Final answer
   x = 3,087.32