Finding the Fourth Proportional to 3,506.28, 4,838.61 and 2,109.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,506.28 : 4,838.61 = 2,109.30 : x
2. Step 2: Convert to fraction form
   3,506.28/4,838.61 = 2,109.30/x
3. Step 3: Cross multiply
   3,506.28x = 4,838.61 × 2,109.30
4. Step 4: Simplify right side
   3,506.28x = 10,206,080.07
5. Step 5: Solve for x
   x = 10,206,080.07/3,506.28
6. Step 6: Final answer
   x = 2,910.80