Finding the Fourth Proportional to 3,136.69, 4,707.20 and 1,084.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,136.69 : 4,707.20 = 1,084.69 : x
2. Step 2: Convert to fraction form
   3,136.69/4,707.20 = 1,084.69/x
3. Step 3: Cross multiply
   3,136.69x = 4,707.20 × 1,084.69
4. Step 4: Simplify right side
   3,136.69x = 5,105,847.34
5. Step 5: Solve for x
   x = 5,105,847.34/3,136.69
6. Step 6: Final answer
   x = 1,627.78