Finding the Fourth Proportional to 2,456.29, 3,390.83 and 1,572.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.29 : 3,390.83 = 1,572.60 : x
2. Step 2: Convert to fraction form
   2,456.29/3,390.83 = 1,572.60/x
3. Step 3: Cross multiply
   2,456.29x = 3,390.83 × 1,572.60
4. Step 4: Simplify right side
   2,456.29x = 5,332,423.19
5. Step 5: Solve for x
   x = 5,332,423.19/2,456.29
6. Step 6: Final answer
   x = 2,170.93