Finding the Fourth Proportional to 2,094.06, 3,140.55 and 860.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,094.06 : 3,140.55 = 860.79 : x
2. Step 2: Convert to fraction form
   2,094.06/3,140.55 = 860.79/x
3. Step 3: Cross multiply
   2,094.06x = 3,140.55 × 860.79
4. Step 4: Simplify right side
   2,094.06x = 2,703,354.03
5. Step 5: Solve for x
   x = 2,703,354.03/2,094.06
6. Step 6: Final answer
   x = 1,290.96