Finding the Fourth Proportional to 2,290.20, 3,094.20 and 2,290.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.20 : 3,094.20 = 2,290.20 : x
2. Step 2: Convert to fraction form
   2,290.20/3,094.20 = 2,290.20/x
3. Step 3: Cross multiply
   2,290.20x = 3,094.20 × 2,290.20
4. Step 4: Simplify right side
   2,290.20x = 7,086,336.84
5. Step 5: Solve for x
   x = 7,086,336.84/2,290.20
6. Step 6: Final answer
   x = 3,094.20