Finding the Fourth Proportional to 3,601.61, 4,968.21 and 2,109.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,601.61 : 4,968.21 = 2,109.24 : x
2. Step 2: Convert to fraction form
   3,601.61/4,968.21 = 2,109.24/x
3. Step 3: Cross multiply
   3,601.61x = 4,968.21 × 2,109.24
4. Step 4: Simplify right side
   3,601.61x = 10,479,155.17
5. Step 5: Solve for x
   x = 10,479,155.17/3,601.61
6. Step 6: Final answer
   x = 2,909.58