Finding the Fourth Proportional to 1,441.62, 1,989.51 and 881.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.62 : 1,989.51 = 881.94 : x
2. Step 2: Convert to fraction form
   1,441.62/1,989.51 = 881.94/x
3. Step 3: Cross multiply
   1,441.62x = 1,989.51 × 881.94
4. Step 4: Simplify right side
   1,441.62x = 1,754,628.45
5. Step 5: Solve for x
   x = 1,754,628.45/1,441.62
6. Step 6: Final answer
   x = 1,217.12