Finding the Fourth Proportional to 2,431.31, 3,647.24 and 2,098.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431.31 : 3,647.24 = 2,098.94 : x
2. Step 2: Convert to fraction form
   2,431.31/3,647.24 = 2,098.94/x
3. Step 3: Cross multiply
   2,431.31x = 3,647.24 × 2,098.94
4. Step 4: Simplify right side
   2,431.31x = 7,655,327.43
5. Step 5: Solve for x
   x = 7,655,327.43/2,431.31
6. Step 6: Final answer
   x = 3,148.64