Finding the Fourth Proportional to 3,510.81, 4,834.89 and 2,628.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510.81 : 4,834.89 = 2,628.72 : x
2. Step 2: Convert to fraction form
   3,510.81/4,834.89 = 2,628.72/x
3. Step 3: Cross multiply
   3,510.81x = 4,834.89 × 2,628.72
4. Step 4: Simplify right side
   3,510.81x = 12,709,572.04
5. Step 5: Solve for x
   x = 12,709,572.04/3,510.81
6. Step 6: Final answer
   x = 3,620.13