Finding the Fourth Proportional to 2,180.52, 3,270.42 and 1,812.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.52 : 3,270.42 = 1,812.69 : x
2. Step 2: Convert to fraction form
   2,180.52/3,270.42 = 1,812.69/x
3. Step 3: Cross multiply
   2,180.52x = 3,270.42 × 1,812.69
4. Step 4: Simplify right side
   2,180.52x = 5,928,257.63
5. Step 5: Solve for x
   x = 5,928,257.63/2,180.52
6. Step 6: Final answer
   x = 2,718.74