Finding the Fourth Proportional to 2,677.40, 3,694.56 and 1,558.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,677.40 : 3,694.56 = 1,558.31 : x
2. Step 2: Convert to fraction form
   2,677.40/3,694.56 = 1,558.31/x
3. Step 3: Cross multiply
   2,677.40x = 3,694.56 × 1,558.31
4. Step 4: Simplify right side
   2,677.40x = 5,757,269.79
5. Step 5: Solve for x
   x = 5,757,269.79/2,677.40
6. Step 6: Final answer
   x = 2,150.32