Finding the Fourth Proportional to 3,411.44, 5,118.12 and 1,103.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,411.44 : 5,118.12 = 1,103.12 : x
2. Step 2: Convert to fraction form
   3,411.44/5,118.12 = 1,103.12/x
3. Step 3: Cross multiply
   3,411.44x = 5,118.12 × 1,103.12
4. Step 4: Simplify right side
   3,411.44x = 5,645,900.53
5. Step 5: Solve for x
   x = 5,645,900.53/3,411.44
6. Step 6: Final answer
   x = 1,654.99