Finding the Fourth Proportional to 3,407.12, 4,704.78 and 2,150.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407.12 : 4,704.78 = 2,150.42 : x
2. Step 2: Convert to fraction form
   3,407.12/4,704.78 = 2,150.42/x
3. Step 3: Cross multiply
   3,407.12x = 4,704.78 × 2,150.42
4. Step 4: Simplify right side
   3,407.12x = 10,117,253.01
5. Step 5: Solve for x
   x = 10,117,253.01/3,407.12
6. Step 6: Final answer
   x = 2,969.44