Finding the Fourth Proportional to 2,760.08, 3,805.80 and 2,012.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.08 : 3,805.80 = 2,012.72 : x
2. Step 2: Convert to fraction form
   2,760.08/3,805.80 = 2,012.72/x
3. Step 3: Cross multiply
   2,760.08x = 3,805.80 × 2,012.72
4. Step 4: Simplify right side
   2,760.08x = 7,660,009.78
5. Step 5: Solve for x
   x = 7,660,009.78/2,760.08
6. Step 6: Final answer
   x = 2,775.29