Finding the Fourth Proportional to 1,961.27, 2,706.62 and 1,077.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,961.27 : 2,706.62 = 1,077.15 : x
2. Step 2: Convert to fraction form
   1,961.27/2,706.62 = 1,077.15/x
3. Step 3: Cross multiply
   1,961.27x = 2,706.62 × 1,077.15
4. Step 4: Simplify right side
   1,961.27x = 2,915,435.73
5. Step 5: Solve for x
   x = 2,915,435.73/1,961.27
6. Step 6: Final answer
   x = 1,486.50