Finding the Fourth Proportional to 2,099.43, 3,148.86 and 712.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.43 : 3,148.86 = 712.71 : x
2. Step 2: Convert to fraction form
   2,099.43/3,148.86 = 712.71/x
3. Step 3: Cross multiply
   2,099.43x = 3,148.86 × 712.71
4. Step 4: Simplify right side
   2,099.43x = 2,244,224.01
5. Step 5: Solve for x
   x = 2,244,224.01/2,099.43
6. Step 6: Final answer
   x = 1,068.97