Finding the Fourth Proportional to 2,740.01, 3,781.22 and 1,561.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.01 : 3,781.22 = 1,561.05 : x
2. Step 2: Convert to fraction form
   2,740.01/3,781.22 = 1,561.05/x
3. Step 3: Cross multiply
   2,740.01x = 3,781.22 × 1,561.05
4. Step 4: Simplify right side
   2,740.01x = 5,902,665.68
5. Step 5: Solve for x
   x = 5,902,665.68/2,740.01
6. Step 6: Final answer
   x = 2,154.25