Finding the Fourth Proportional to 2,406.61, 3,609.68 and 1,631.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.61 : 3,609.68 = 1,631.59 : x
2. Step 2: Convert to fraction form
   2,406.61/3,609.68 = 1,631.59/x
3. Step 3: Cross multiply
   2,406.61x = 3,609.68 × 1,631.59
4. Step 4: Simplify right side
   2,406.61x = 5,889,517.79
5. Step 5: Solve for x
   x = 5,889,517.79/2,406.61
6. Step 6: Final answer
   x = 2,447.23