Finding the Fourth Proportional to 5,388.69, 7,435.81 and 2,998.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.69 : 7,435.81 = 2,998.28 : x
2. Step 2: Convert to fraction form
   5,388.69/7,435.81 = 2,998.28/x
3. Step 3: Cross multiply
   5,388.69x = 7,435.81 × 2,998.28
4. Step 4: Simplify right side
   5,388.69x = 22,294,635.59
5. Step 5: Solve for x
   x = 22,294,635.59/5,388.69
6. Step 6: Final answer
   x = 4,137.30