Finding the Fourth Proportional to 3,867.34, 5,333.43 and 2,540.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867.34 : 5,333.43 = 2,540.58 : x
2. Step 2: Convert to fraction form
   3,867.34/5,333.43 = 2,540.58/x
3. Step 3: Cross multiply
   3,867.34x = 5,333.43 × 2,540.58
4. Step 4: Simplify right side
   3,867.34x = 13,550,005.59
5. Step 5: Solve for x
   x = 13,550,005.59/3,867.34
6. Step 6: Final answer
   x = 3,503.70