Finding the Fourth Proportional to 3,665.67, 5,058.56 and 2,072.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.67 : 5,058.56 = 2,072.29 : x
2. Step 2: Convert to fraction form
   3,665.67/5,058.56 = 2,072.29/x
3. Step 3: Cross multiply
   3,665.67x = 5,058.56 × 2,072.29
4. Step 4: Simplify right side
   3,665.67x = 10,482,814.81
5. Step 5: Solve for x
   x = 10,482,814.81/3,665.67
6. Step 6: Final answer
   x = 2,859.73