Finding the Fourth Proportional to 5,401.26, 7,453.87 and 2,978.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,401.26 : 7,453.87 = 2,978.71 : x
2. Step 2: Convert to fraction form
   5,401.26/7,453.87 = 2,978.71/x
3. Step 3: Cross multiply
   5,401.26x = 7,453.87 × 2,978.71
4. Step 4: Simplify right side
   5,401.26x = 22,202,891.03
5. Step 5: Solve for x
   x = 22,202,891.03/5,401.26
6. Step 6: Final answer
   x = 4,110.69