Finding the Fourth Proportional to 2,188.37, 3,284.12 and 1,642.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.37 : 3,284.12 = 1,642.03 : x
2. Step 2: Convert to fraction form
   2,188.37/3,284.12 = 1,642.03/x
3. Step 3: Cross multiply
   2,188.37x = 3,284.12 × 1,642.03
4. Step 4: Simplify right side
   2,188.37x = 5,392,619.46
5. Step 5: Solve for x
   x = 5,392,619.46/2,188.37
6. Step 6: Final answer
   x = 2,464.21