Finding the Fourth Proportional to 2,504.99, 3,456.83 and 1,385.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,504.99 : 3,456.83 = 1,385.88 : x
2. Step 2: Convert to fraction form
   2,504.99/3,456.83 = 1,385.88/x
3. Step 3: Cross multiply
   2,504.99x = 3,456.83 × 1,385.88
4. Step 4: Simplify right side
   2,504.99x = 4,790,751.56
5. Step 5: Solve for x
   x = 4,790,751.56/2,504.99
6. Step 6: Final answer
   x = 1,912.48