Finding the Fourth Proportional to 1,253.69, 1,880.37 and 329.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253.69 : 1,880.37 = 329.25 : x
2. Step 2: Convert to fraction form
   1,253.69/1,880.37 = 329.25/x
3. Step 3: Cross multiply
   1,253.69x = 1,880.37 × 329.25
4. Step 4: Simplify right side
   1,253.69x = 619,111.82
5. Step 5: Solve for x
   x = 619,111.82/1,253.69
6. Step 6: Final answer
   x = 493.83