Finding the Fourth Proportional to 2,700.63, 3,726.81 and 1,521.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.63 : 3,726.81 = 1,521.68 : x
2. Step 2: Convert to fraction form
   2,700.63/3,726.81 = 1,521.68/x
3. Step 3: Cross multiply
   2,700.63x = 3,726.81 × 1,521.68
4. Step 4: Simplify right side
   2,700.63x = 5,670,993.61
5. Step 5: Solve for x
   x = 5,670,993.61/2,700.63
6. Step 6: Final answer
   x = 2,099.88