Finding the Fourth Proportional to 2,098.83, 3,148.39 and 712.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.83 : 3,148.39 = 712.31 : x
2. Step 2: Convert to fraction form
   2,098.83/3,148.39 = 712.31/x
3. Step 3: Cross multiply
   2,098.83x = 3,148.39 × 712.31
4. Step 4: Simplify right side
   2,098.83x = 2,242,629.68
5. Step 5: Solve for x
   x = 2,242,629.68/2,098.83
6. Step 6: Final answer
   x = 1,068.51