Finding the Fourth Proportional to 3,582.78, 4,942.32 and 2,090.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,582.78 : 4,942.32 = 2,090.15 : x
2. Step 2: Convert to fraction form
   3,582.78/4,942.32 = 2,090.15/x
3. Step 3: Cross multiply
   3,582.78x = 4,942.32 × 2,090.15
4. Step 4: Simplify right side
   3,582.78x = 10,330,190.15
5. Step 5: Solve for x
   x = 10,330,190.15/3,582.78
6. Step 6: Final answer
   x = 2,883.29