Finding the Fourth Proportional to 1,441.34, 1,989.03 and 803.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.34 : 1,989.03 = 803.28 : x
2. Step 2: Convert to fraction form
   1,441.34/1,989.03 = 803.28/x
3. Step 3: Cross multiply
   1,441.34x = 1,989.03 × 803.28
4. Step 4: Simplify right side
   1,441.34x = 1,597,748.02
5. Step 5: Solve for x
   x = 1,597,748.02/1,441.34
6. Step 6: Final answer
   x = 1,108.52