Finding the Fourth Proportional to 2,631.39, 3,629.21 and 1,634.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.39 : 3,629.21 = 1,634.78 : x
2. Step 2: Convert to fraction form
   2,631.39/3,629.21 = 1,634.78/x
3. Step 3: Cross multiply
   2,631.39x = 3,629.21 × 1,634.78
4. Step 4: Simplify right side
   2,631.39x = 5,932,960.82
5. Step 5: Solve for x
   x = 5,932,960.82/2,631.39
6. Step 6: Final answer
   x = 2,254.69