Finding the Fourth Proportional to 5,404.63, 7,458.39 and 2,920.63

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.63 : 7,458.39 = 2,920.63 : x
2. Step 2: Convert to fraction form
   5,404.63/7,458.39 = 2,920.63/x
3. Step 3: Cross multiply
   5,404.63x = 7,458.39 × 2,920.63
4. Step 4: Simplify right side
   5,404.63x = 21,783,145.69
5. Step 5: Solve for x
   x = 21,783,145.69/5,404.63
6. Step 6: Final answer
   x = 4,030.46