Finding the Fourth Proportional to 2,404.81, 3,317.74 and 1,617.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.81 : 3,317.74 = 1,617.61 : x
2. Step 2: Convert to fraction form
   2,404.81/3,317.74 = 1,617.61/x
3. Step 3: Cross multiply
   2,404.81x = 3,317.74 × 1,617.61
4. Step 4: Simplify right side
   2,404.81x = 5,366,809.40
5. Step 5: Solve for x
   x = 5,366,809.40/2,404.81
6. Step 6: Final answer
   x = 2,231.70