Finding the Fourth Proportional to 3,662.20, 5,491.68 and 1,065.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,662.20 : 5,491.68 = 1,065.34 : x
2. Step 2: Convert to fraction form
   3,662.20/5,491.68 = 1,065.34/x
3. Step 3: Cross multiply
   3,662.20x = 5,491.68 × 1,065.34
4. Step 4: Simplify right side
   3,662.20x = 5,850,506.37
5. Step 5: Solve for x
   x = 5,850,506.37/3,662.20
6. Step 6: Final answer
   x = 1,597.54