Finding the Fourth Proportional to 2,632.17, 3,633.02 and 1,638.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.17 : 3,633.02 = 1,638.21 : x
2. Step 2: Convert to fraction form
   2,632.17/3,633.02 = 1,638.21/x
3. Step 3: Cross multiply
   2,632.17x = 3,633.02 × 1,638.21
4. Step 4: Simplify right side
   2,632.17x = 5,951,649.69
5. Step 5: Solve for x
   x = 5,951,649.69/2,632.17
6. Step 6: Final answer
   x = 2,261.12