Finding the Fourth Proportional to 2,769.72, 3,822.21 and 1,527.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,769.72 : 3,822.21 = 1,527.72 : x
2. Step 2: Convert to fraction form
   2,769.72/3,822.21 = 1,527.72/x
3. Step 3: Cross multiply
   2,769.72x = 3,822.21 × 1,527.72
4. Step 4: Simplify right side
   2,769.72x = 5,839,266.66
5. Step 5: Solve for x
   x = 5,839,266.66/2,769.72
6. Step 6: Final answer
   x = 2,108.25