Finding the Fourth Proportional to 3,665.58, 5,498.61 and 2,681.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.58 : 5,498.61 = 2,681.34 : x
2. Step 2: Convert to fraction form
   3,665.58/5,498.61 = 2,681.34/x
3. Step 3: Cross multiply
   3,665.58x = 5,498.61 × 2,681.34
4. Step 4: Simplify right side
   3,665.58x = 14,743,642.94
5. Step 5: Solve for x
   x = 14,743,642.94/3,665.58
6. Step 6: Final answer
   x = 4,022.19