Finding the Fourth Proportional to 2,740.26, 3,781.89 and 1,561.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.26 : 3,781.89 = 1,561.62 : x
2. Step 2: Convert to fraction form
   2,740.26/3,781.89 = 1,561.62/x
3. Step 3: Cross multiply
   2,740.26x = 3,781.89 × 1,561.62
4. Step 4: Simplify right side
   2,740.26x = 5,905,875.06
5. Step 5: Solve for x
   x = 5,905,875.06/2,740.26
6. Step 6: Final answer
   x = 2,155.22