Finding the Fourth Proportional to 5,404.69, 7,458.47 and 2,920.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.69 : 7,458.47 = 2,920.69 : x
2. Step 2: Convert to fraction form
   5,404.69/7,458.47 = 2,920.69/x
3. Step 3: Cross multiply
   5,404.69x = 7,458.47 × 2,920.69
4. Step 4: Simplify right side
   5,404.69x = 21,783,867.40
5. Step 5: Solve for x
   x = 21,783,867.40/5,404.69
6. Step 6: Final answer
   x = 4,030.55