Finding the Fourth Proportional to 3,665.04, 5,057.76 and 1,986.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.04 : 5,057.76 = 1,986.46 : x
2. Step 2: Convert to fraction form
   3,665.04/5,057.76 = 1,986.46/x
3. Step 3: Cross multiply
   3,665.04x = 5,057.76 × 1,986.46
4. Step 4: Simplify right side
   3,665.04x = 10,047,037.93
5. Step 5: Solve for x
   x = 10,047,037.93/3,665.04
6. Step 6: Final answer
   x = 2,741.32