Finding the Fourth Proportional to 1,395.51, 1,921.43 and 1,185.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.51 : 1,921.43 = 1,185.27 : x
2. Step 2: Convert to fraction form
   1,395.51/1,921.43 = 1,185.27/x
3. Step 3: Cross multiply
   1,395.51x = 1,921.43 × 1,185.27
4. Step 4: Simplify right side
   1,395.51x = 2,277,407.41
5. Step 5: Solve for x
   x = 2,277,407.41/1,395.51
6. Step 6: Final answer
   x = 1,631.95