Finding the Fourth Proportional to 2,911.72, 4,361.02 and 1,676.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,911.72 : 4,361.02 = 1,676.20 : x
2. Step 2: Convert to fraction form
   2,911.72/4,361.02 = 1,676.20/x
3. Step 3: Cross multiply
   2,911.72x = 4,361.02 × 1,676.20
4. Step 4: Simplify right side
   2,911.72x = 7,309,941.72
5. Step 5: Solve for x
   x = 7,309,941.72/2,911.72
6. Step 6: Final answer
   x = 2,510.52