Finding the Fourth Proportional to 1,676.09, 2,311.31 and 1,012.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,676.09 : 2,311.31 = 1,012.57 : x
2. Step 2: Convert to fraction form
   1,676.09/2,311.31 = 1,012.57/x
3. Step 3: Cross multiply
   1,676.09x = 2,311.31 × 1,012.57
4. Step 4: Simplify right side
   1,676.09x = 2,340,359.92
5. Step 5: Solve for x
   x = 2,340,359.92/1,676.09
6. Step 6: Final answer
   x = 1,396.32