Finding the Fourth Proportional to 2,327.31, 3,491.64 and 1,231.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,327.31 : 3,491.64 = 1,231.54 : x
2. Step 2: Convert to fraction form
   2,327.31/3,491.64 = 1,231.54/x
3. Step 3: Cross multiply
   2,327.31x = 3,491.64 × 1,231.54
4. Step 4: Simplify right side
   2,327.31x = 4,300,085.60
5. Step 5: Solve for x
   x = 4,300,085.60/2,327.31
6. Step 6: Final answer
   x = 1,847.66