Finding the Fourth Proportional to 3,662.80, 5,494.56 and 1,065.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,662.80 : 5,494.56 = 1,065.76 : x
2. Step 2: Convert to fraction form
   3,662.80/5,494.56 = 1,065.76/x
3. Step 3: Cross multiply
   3,662.80x = 5,494.56 × 1,065.76
4. Step 4: Simplify right side
   3,662.80x = 5,855,882.27
5. Step 5: Solve for x
   x = 5,855,882.27/3,662.80
6. Step 6: Final answer
   x = 1,598.74