Finding the Fourth Proportional to 1,076.94, 1,486.35 and 611.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.94 : 1,486.35 = 611.34 : x
2. Step 2: Convert to fraction form
   1,076.94/1,486.35 = 611.34/x
3. Step 3: Cross multiply
   1,076.94x = 1,486.35 × 611.34
4. Step 4: Simplify right side
   1,076.94x = 908,665.21
5. Step 5: Solve for x
   x = 908,665.21/1,076.94
6. Step 6: Final answer
   x = 843.75