Finding the Fourth Proportional to 3,423.97, 5,136.59 and 1,084.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,423.97 : 5,136.59 = 1,084.57 : x
2. Step 2: Convert to fraction form
   3,423.97/5,136.59 = 1,084.57/x
3. Step 3: Cross multiply
   3,423.97x = 5,136.59 × 1,084.57
4. Step 4: Simplify right side
   3,423.97x = 5,570,991.42
5. Step 5: Solve for x
   x = 5,570,991.42/3,423.97
6. Step 6: Final answer
   x = 1,627.06