Finding the Fourth Proportional to 3,846.34, 5,305.86 and 2,587.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846.34 : 5,305.86 = 2,587.48 : x
2. Step 2: Convert to fraction form
   3,846.34/5,305.86 = 2,587.48/x
3. Step 3: Cross multiply
   3,846.34x = 5,305.86 × 2,587.48
4. Step 4: Simplify right side
   3,846.34x = 13,728,806.63
5. Step 5: Solve for x
   x = 13,728,806.63/3,846.34
6. Step 6: Final answer
   x = 3,569.32