Finding the Fourth Proportional to 2,093.83, 3,140.78 and 998.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.83 : 3,140.78 = 998.31 : x
2. Step 2: Convert to fraction form
   2,093.83/3,140.78 = 998.31/x
3. Step 3: Cross multiply
   2,093.83x = 3,140.78 × 998.31
4. Step 4: Simplify right side
   2,093.83x = 3,135,472.08
5. Step 5: Solve for x
   x = 3,135,472.08/2,093.83
6. Step 6: Final answer
   x = 1,497.48