Finding the Fourth Proportional to 2,390.69, 3,296.49 and 1,634.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.69 : 3,296.49 = 1,634.60 : x
2. Step 2: Convert to fraction form
   2,390.69/3,296.49 = 1,634.60/x
3. Step 3: Cross multiply
   2,390.69x = 3,296.49 × 1,634.60
4. Step 4: Simplify right side
   2,390.69x = 5,388,426.07
5. Step 5: Solve for x
   x = 5,388,426.07/2,390.69
6. Step 6: Final answer
   x = 2,253.93