Finding the Fourth Proportional to 3,605.76, 5,408.16 and 1,962.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,605.76 : 5,408.16 = 1,962.72 : x
2. Step 2: Convert to fraction form
   3,605.76/5,408.16 = 1,962.72/x
3. Step 3: Cross multiply
   3,605.76x = 5,408.16 × 1,962.72
4. Step 4: Simplify right side
   3,605.76x = 10,614,703.80
5. Step 5: Solve for x
   x = 10,614,703.80/3,605.76
6. Step 6: Final answer
   x = 2,943.82