Finding the Fourth Proportional to 1,676.40, 2,314.56 and 1,234.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,676.40 : 2,314.56 = 1,234.80 : x
2. Step 2: Convert to fraction form
   1,676.40/2,314.56 = 1,234.80/x
3. Step 3: Cross multiply
   1,676.40x = 2,314.56 × 1,234.80
4. Step 4: Simplify right side
   1,676.40x = 2,858,018.69
5. Step 5: Solve for x
   x = 2,858,018.69/1,676.40
6. Step 6: Final answer
   x = 1,704.85