Finding the Fourth Proportional to 2,647.01, 3,652.82 and 1,638.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.01 : 3,652.82 = 1,638.45 : x
2. Step 2: Convert to fraction form
   2,647.01/3,652.82 = 1,638.45/x
3. Step 3: Cross multiply
   2,647.01x = 3,652.82 × 1,638.45
4. Step 4: Simplify right side
   2,647.01x = 5,984,964.90
5. Step 5: Solve for x
   x = 5,984,964.90/2,647.01
6. Step 6: Final answer
   x = 2,261.03