Finding the Fourth Proportional to 3,429.84, 5,144.22 and 1,089.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429.84 : 5,144.22 = 1,089.53 : x
2. Step 2: Convert to fraction form
   3,429.84/5,144.22 = 1,089.53/x
3. Step 3: Cross multiply
   3,429.84x = 5,144.22 × 1,089.53
4. Step 4: Simplify right side
   3,429.84x = 5,604,797.18
5. Step 5: Solve for x
   x = 5,604,797.18/3,429.84
6. Step 6: Final answer
   x = 1,634.13