Finding the Fourth Proportional to 1,360.94, 1,877.85 and 864.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.94 : 1,877.85 = 864.27 : x
2. Step 2: Convert to fraction form
   1,360.94/1,877.85 = 864.27/x
3. Step 3: Cross multiply
   1,360.94x = 1,877.85 × 864.27
4. Step 4: Simplify right side
   1,360.94x = 1,622,969.42
5. Step 5: Solve for x
   x = 1,622,969.42/1,360.94
6. Step 6: Final answer
   x = 1,192.54