Finding the Fourth Proportional to 5,384.38, 7,426.32 and 3,897.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,384.38 : 7,426.32 = 3,897.22 : x
2. Step 2: Convert to fraction form
   5,384.38/7,426.32 = 3,897.22/x
3. Step 3: Cross multiply
   5,384.38x = 7,426.32 × 3,897.22
4. Step 4: Simplify right side
   5,384.38x = 28,942,002.83
5. Step 5: Solve for x
   x = 28,942,002.83/5,384.38
6. Step 6: Final answer
   x = 5,375.18