Finding the Fourth Proportional to 2,758.72, 3,806.42 and 2,013.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.72 : 3,806.42 = 2,013.08 : x
2. Step 2: Convert to fraction form
   2,758.72/3,806.42 = 2,013.08/x
3. Step 3: Cross multiply
   2,758.72x = 3,806.42 × 2,013.08
4. Step 4: Simplify right side
   2,758.72x = 7,662,642.52
5. Step 5: Solve for x
   x = 7,662,642.52/2,758.72
6. Step 6: Final answer
   x = 2,777.61