Finding the Fourth Proportional to 1,561.27, 2,341.92 and 1,072.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.27 : 2,341.92 = 1,072.84 : x
2. Step 2: Convert to fraction form
   1,561.27/2,341.92 = 1,072.84/x
3. Step 3: Cross multiply
   1,561.27x = 2,341.92 × 1,072.84
4. Step 4: Simplify right side
   1,561.27x = 2,512,505.45
5. Step 5: Solve for x
   x = 2,512,505.45/1,561.27
6. Step 6: Final answer
   x = 1,609.27