Finding the Fourth Proportional to 2,504.49, 3,456.12 and 1,385.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,504.49 : 3,456.12 = 1,385.52 : x
2. Step 2: Convert to fraction form
   2,504.49/3,456.12 = 1,385.52/x
3. Step 3: Cross multiply
   2,504.49x = 3,456.12 × 1,385.52
4. Step 4: Simplify right side
   2,504.49x = 4,788,523.38
5. Step 5: Solve for x
   x = 4,788,523.38/2,504.49
6. Step 6: Final answer
   x = 1,911.98