Finding the Fourth Proportional to 1,185.27, 1,633.60 and 1,018.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.27 : 1,633.60 = 1,018.81 : x
2. Step 2: Convert to fraction form
   1,185.27/1,633.60 = 1,018.81/x
3. Step 3: Cross multiply
   1,185.27x = 1,633.60 × 1,018.81
4. Step 4: Simplify right side
   1,185.27x = 1,664,331.33
5. Step 5: Solve for x
   x = 1,664,331.33/1,185.27
6. Step 6: Final answer
   x = 1,404.18