Finding the Fourth Proportional to 1,642.27, 2,465.22 and 1,636.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,642.27 : 2,465.22 = 1,636.18 : x
2. Step 2: Convert to fraction form
   1,642.27/2,465.22 = 1,636.18/x
3. Step 3: Cross multiply
   1,642.27x = 2,465.22 × 1,636.18
4. Step 4: Simplify right side
   1,642.27x = 4,033,543.66
5. Step 5: Solve for x
   x = 4,033,543.66/1,642.27
6. Step 6: Final answer
   x = 2,456.08