Finding the Fourth Proportional to 2,307.78, 3,179.03 and 1,676.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.78 : 3,179.03 = 1,676.48 : x
2. Step 2: Convert to fraction form
   2,307.78/3,179.03 = 1,676.48/x
3. Step 3: Cross multiply
   2,307.78x = 3,179.03 × 1,676.48
4. Step 4: Simplify right side
   2,307.78x = 5,329,555.94
5. Step 5: Solve for x
   x = 5,329,555.94/2,307.78
6. Step 6: Final answer
   x = 2,309.39