Finding the Fourth Proportional to 2,676.69, 3,693.78 and 1,557.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,676.69 : 3,693.78 = 1,557.99 : x
2. Step 2: Convert to fraction form
   2,676.69/3,693.78 = 1,557.99/x
3. Step 3: Cross multiply
   2,676.69x = 3,693.78 × 1,557.99
4. Step 4: Simplify right side
   2,676.69x = 5,754,872.30
5. Step 5: Solve for x
   x = 5,754,872.30/2,676.69
6. Step 6: Final answer
   x = 2,150.00