Finding the Fourth Proportional to 2,422.86, 3,339.63 and 1,636.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.86 : 3,339.63 = 1,636.62 : x
2. Step 2: Convert to fraction form
   2,422.86/3,339.63 = 1,636.62/x
3. Step 3: Cross multiply
   2,422.86x = 3,339.63 × 1,636.62
4. Step 4: Simplify right side
   2,422.86x = 5,465,705.25
5. Step 5: Solve for x
   x = 5,465,705.25/2,422.86
6. Step 6: Final answer
   x = 2,255.89