Finding the Fourth Proportional to 2,760.09, 3,812.24 and 2,012.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.09 : 3,812.24 = 2,012.87 : x
2. Step 2: Convert to fraction form
   2,760.09/3,812.24 = 2,012.87/x
3. Step 3: Cross multiply
   2,760.09x = 3,812.24 × 2,012.87
4. Step 4: Simplify right side
   2,760.09x = 7,673,529.50
5. Step 5: Solve for x
   x = 7,673,529.50/2,760.09
6. Step 6: Final answer
   x = 2,780.17