Finding the Fourth Proportional to 1,676.45, 2,311.98 and 1,047.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,676.45 : 2,311.98 = 1,047.03 : x
2. Step 2: Convert to fraction form
   1,676.45/2,311.98 = 1,047.03/x
3. Step 3: Cross multiply
   1,676.45x = 2,311.98 × 1,047.03
4. Step 4: Simplify right side
   1,676.45x = 2,420,712.42
5. Step 5: Solve for x
   x = 2,420,712.42/1,676.45
6. Step 6: Final answer
   x = 1,443.95