Finding the Fourth Proportional to 2,187.43, 3,018.69 and 1,192.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.43 : 3,018.69 = 1,192.73 : x
2. Step 2: Convert to fraction form
   2,187.43/3,018.69 = 1,192.73/x
3. Step 3: Cross multiply
   2,187.43x = 3,018.69 × 1,192.73
4. Step 4: Simplify right side
   2,187.43x = 3,600,482.12
5. Step 5: Solve for x
   x = 3,600,482.12/2,187.43
6. Step 6: Final answer
   x = 1,645.99