Finding the Fourth Proportional to 3,426.57, 4,728.51 and 2,100.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426.57 : 4,728.51 = 2,100.06 : x
2. Step 2: Convert to fraction form
   3,426.57/4,728.51 = 2,100.06/x
3. Step 3: Cross multiply
   3,426.57x = 4,728.51 × 2,100.06
4. Step 4: Simplify right side
   3,426.57x = 9,930,154.71
5. Step 5: Solve for x
   x = 9,930,154.71/3,426.57
6. Step 6: Final answer
   x = 2,897.99