Finding the Fourth Proportional to 3,951.86, 5,456.16 and 2,461.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,951.86 : 5,456.16 = 2,461.86 : x
2. Step 2: Convert to fraction form
   3,951.86/5,456.16 = 2,461.86/x
3. Step 3: Cross multiply
   3,951.86x = 5,456.16 × 2,461.86
4. Step 4: Simplify right side
   3,951.86x = 13,432,302.06
5. Step 5: Solve for x
   x = 13,432,302.06/3,951.86
6. Step 6: Final answer
   x = 3,398.99