Finding the Fourth Proportional to 2,603.42, 3,906.04 and 1,628.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.42 : 3,906.04 = 1,628.38 : x
2. Step 2: Convert to fraction form
   2,603.42/3,906.04 = 1,628.38/x
3. Step 3: Cross multiply
   2,603.42x = 3,906.04 × 1,628.38
4. Step 4: Simplify right side
   2,603.42x = 6,360,517.42
5. Step 5: Solve for x
   x = 6,360,517.42/2,603.42
6. Step 6: Final answer
   x = 2,443.14