Finding the Fourth Proportional to 2,740.76, 3,781.30 and 1,561.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.76 : 3,781.30 = 1,561.53 : x
2. Step 2: Convert to fraction form
   2,740.76/3,781.30 = 1,561.53/x
3. Step 3: Cross multiply
   2,740.76x = 3,781.30 × 1,561.53
4. Step 4: Simplify right side
   2,740.76x = 5,904,613.39
5. Step 5: Solve for x
   x = 5,904,613.39/2,740.76
6. Step 6: Final answer
   x = 2,154.37