Finding the Fourth Proportional to 3,443.45, 5,164.66 and 1,103.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.45 : 5,164.66 = 1,103.21 : x
2. Step 2: Convert to fraction form
   3,443.45/5,164.66 = 1,103.21/x
3. Step 3: Cross multiply
   3,443.45x = 5,164.66 × 1,103.21
4. Step 4: Simplify right side
   3,443.45x = 5,697,715.56
5. Step 5: Solve for x
   x = 5,697,715.56/3,443.45
6. Step 6: Final answer
   x = 1,654.65