Finding the Fourth Proportional to 1,922.69, 2,886.32 and 1,618.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.69 : 2,886.32 = 1,618.33 : x
2. Step 2: Convert to fraction form
   1,922.69/2,886.32 = 1,618.33/x
3. Step 3: Cross multiply
   1,922.69x = 2,886.32 × 1,618.33
4. Step 4: Simplify right side
   1,922.69x = 4,671,018.25
5. Step 5: Solve for x
   x = 4,671,018.25/1,922.69
6. Step 6: Final answer
   x = 2,429.42