Finding the Fourth Proportional to 2,187.12, 3,018.23 and 1,192.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.12 : 3,018.23 = 1,192.41 : x
2. Step 2: Convert to fraction form
   2,187.12/3,018.23 = 1,192.41/x
3. Step 3: Cross multiply
   2,187.12x = 3,018.23 × 1,192.41
4. Step 4: Simplify right side
   2,187.12x = 3,598,967.63
5. Step 5: Solve for x
   x = 3,598,967.63/2,187.12
6. Step 6: Final answer
   x = 1,645.53