Finding the Fourth Proportional to 3,776.29, 5,660.89 and 1,309.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,776.29 : 5,660.89 = 1,309.43 : x
2. Step 2: Convert to fraction form
   3,776.29/5,660.89 = 1,309.43/x
3. Step 3: Cross multiply
   3,776.29x = 5,660.89 × 1,309.43
4. Step 4: Simplify right side
   3,776.29x = 7,412,550.07
5. Step 5: Solve for x
   x = 7,412,550.07/3,776.29
6. Step 6: Final answer
   x = 1,962.92