Finding the Fourth Proportional to 2,796.28, 3,842.67 and 2,667.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,796.28 : 3,842.67 = 2,667.80 : x
2. Step 2: Convert to fraction form
   2,796.28/3,842.67 = 2,667.80/x
3. Step 3: Cross multiply
   2,796.28x = 3,842.67 × 2,667.80
4. Step 4: Simplify right side
   2,796.28x = 10,251,475.03
5. Step 5: Solve for x
   x = 10,251,475.03/2,796.28
6. Step 6: Final answer
   x = 3,666.11