Finding the Fourth Proportional to 2,561.90, 3,843.25 and 1,101.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.90 : 3,843.25 = 1,101.06 : x
2. Step 2: Convert to fraction form
   2,561.90/3,843.25 = 1,101.06/x
3. Step 3: Cross multiply
   2,561.90x = 3,843.25 × 1,101.06
4. Step 4: Simplify right side
   2,561.90x = 4,231,646.09
5. Step 5: Solve for x
   x = 4,231,646.09/2,561.90
6. Step 6: Final answer
   x = 1,651.76