Finding the Fourth Proportional to 2,700.78, 3,726.80 and 1,522.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.78 : 3,726.80 = 1,522.06 : x
2. Step 2: Convert to fraction form
   2,700.78/3,726.80 = 1,522.06/x
3. Step 3: Cross multiply
   2,700.78x = 3,726.80 × 1,522.06
4. Step 4: Simplify right side
   2,700.78x = 5,672,413.21
5. Step 5: Solve for x
   x = 5,672,413.21/2,700.78
6. Step 6: Final answer
   x = 2,100.29