Finding the Fourth Proportional to 2,700, 3,726.19 and 1,521.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700 : 3,726.19 = 1,521.07 : x
2. Step 2: Convert to fraction form
   2,700/3,726.19 = 1,521.07/x
3. Step 3: Cross multiply
   2,700x = 3,726.19 × 1,521.07
4. Step 4: Simplify right side
   2,700x = 5,667,798.89
5. Step 5: Solve for x
   x = 5,667,798.89/2,700
6. Step 6: Final answer
   x = 2,099.18