Finding the Fourth Proportional to 2,700.45, 3,726.48 and 1,521.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.45 : 3,726.48 = 1,521.59 : x
2. Step 2: Convert to fraction form
   2,700.45/3,726.48 = 1,521.59/x
3. Step 3: Cross multiply
   2,700.45x = 3,726.48 × 1,521.59
4. Step 4: Simplify right side
   2,700.45x = 5,670,174.70
5. Step 5: Solve for x
   x = 5,670,174.70/2,700.45
6. Step 6: Final answer
   x = 2,099.71