Finding the Fourth Proportional to 3,605.40, 5,404.59 and 1,962.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,605.40 : 5,404.59 = 1,962.18 : x
2. Step 2: Convert to fraction form
   3,605.40/5,404.59 = 1,962.18/x
3. Step 3: Cross multiply
   3,605.40x = 5,404.59 × 1,962.18
4. Step 4: Simplify right side
   3,605.40x = 10,604,778.41
5. Step 5: Solve for x
   x = 10,604,778.41/3,605.40
6. Step 6: Final answer
   x = 2,941.36