Finding the Fourth Proportional to 3,601.30, 4,969.15 and 2,109.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,601.30 : 4,969.15 = 2,109.18 : x
2. Step 2: Convert to fraction form
   3,601.30/4,969.15 = 2,109.18/x
3. Step 3: Cross multiply
   3,601.30x = 4,969.15 × 2,109.18
4. Step 4: Simplify right side
   3,601.30x = 10,480,821.25
5. Step 5: Solve for x
   x = 10,480,821.25/3,601.30
6. Step 6: Final answer
   x = 2,910.29