Finding the Fourth Proportional to 2,642.16, 3,650.04 and 2,086.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.16 : 3,650.04 = 2,086.32 : x
2. Step 2: Convert to fraction form
   2,642.16/3,650.04 = 2,086.32/x
3. Step 3: Cross multiply
   2,642.16x = 3,650.04 × 2,086.32
4. Step 4: Simplify right side
   2,642.16x = 7,615,151.45
5. Step 5: Solve for x
   x = 7,615,151.45/2,642.16
6. Step 6: Final answer
   x = 2,882.17