Finding the Fourth Proportional to 1,362.81, 1,882.40 and 1,185.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.81 : 1,882.40 = 1,185.42 : x
2. Step 2: Convert to fraction form
   1,362.81/1,882.40 = 1,185.42/x
3. Step 3: Cross multiply
   1,362.81x = 1,882.40 × 1,185.42
4. Step 4: Simplify right side
   1,362.81x = 2,231,434.61
5. Step 5: Solve for x
   x = 2,231,434.61/1,362.81
6. Step 6: Final answer
   x = 1,637.38