Finding the Fourth Proportional to 2,908.05, 4,361.51 and 828.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,908.05 : 4,361.51 = 828.03 : x
2. Step 2: Convert to fraction form
   2,908.05/4,361.51 = 828.03/x
3. Step 3: Cross multiply
   2,908.05x = 4,361.51 × 828.03
4. Step 4: Simplify right side
   2,908.05x = 3,611,479.55
5. Step 5: Solve for x
   x = 3,611,479.55/2,908.05
6. Step 6: Final answer
   x = 1,241.89