Finding the Fourth Proportional to 5,298.30, 7,311.73 and 2,940.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,298.30 : 7,311.73 = 2,940.59 : x
2. Step 2: Convert to fraction form
   5,298.30/7,311.73 = 2,940.59/x
3. Step 3: Cross multiply
   5,298.30x = 7,311.73 × 2,940.59
4. Step 4: Simplify right side
   5,298.30x = 21,500,800.12
5. Step 5: Solve for x
   x = 21,500,800.12/5,298.30
6. Step 6: Final answer
   x = 4,058.06