Finding the Fourth Proportional to 3,820.72, 5,726.28 and 2,065.65

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.72 : 5,726.28 = 2,065.65 : x
2. Step 2: Convert to fraction form
   3,820.72/5,726.28 = 2,065.65/x
3. Step 3: Cross multiply
   3,820.72x = 5,726.28 × 2,065.65
4. Step 4: Simplify right side
   3,820.72x = 11,828,498.03
5. Step 5: Solve for x
   x = 11,828,498.03/3,820.72
6. Step 6: Final answer
   x = 3,095.88