Finding the Fourth Proportional to 2,504.62, 3,456.39 and 1,385.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,504.62 : 3,456.39 = 1,385.59 : x
2. Step 2: Convert to fraction form
   2,504.62/3,456.39 = 1,385.59/x
3. Step 3: Cross multiply
   2,504.62x = 3,456.39 × 1,385.59
4. Step 4: Simplify right side
   2,504.62x = 4,789,122.14
5. Step 5: Solve for x
   x = 4,789,122.14/2,504.62
6. Step 6: Final answer
   x = 1,912.12