Finding the Fourth Proportional to 1,626.84, 2,422.89 and 1,617.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,626.84 : 2,422.89 = 1,617.57 : x
2. Step 2: Convert to fraction form
   1,626.84/2,422.89 = 1,617.57/x
3. Step 3: Cross multiply
   1,626.84x = 2,422.89 × 1,617.57
4. Step 4: Simplify right side
   1,626.84x = 3,919,194.18
5. Step 5: Solve for x
   x = 3,919,194.18/1,626.84
6. Step 6: Final answer
   x = 2,409.08