Finding the Fourth Proportional to 1,361.29, 1,877.89 and 889.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,361.29 : 1,877.89 = 889.46 : x
2. Step 2: Convert to fraction form
   1,361.29/1,877.89 = 889.46/x
3. Step 3: Cross multiply
   1,361.29x = 1,877.89 × 889.46
4. Step 4: Simplify right side
   1,361.29x = 1,670,311.11
5. Step 5: Solve for x
   x = 1,670,311.11/1,361.29
6. Step 6: Final answer
   x = 1,227.01