Finding the Fourth Proportional to 5,404.50, 7,458.22 and 2,920.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.50 : 7,458.22 = 2,920.50 : x
2. Step 2: Convert to fraction form
   5,404.50/7,458.22 = 2,920.50/x
3. Step 3: Cross multiply
   5,404.50x = 7,458.22 × 2,920.50
4. Step 4: Simplify right side
   5,404.50x = 21,781,731.51
5. Step 5: Solve for x
   x = 21,781,731.51/5,404.50
6. Step 6: Final answer
   x = 4,030.30