Finding the Fourth Proportional to 2,634.89, 3,636.53 and 1,640.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,634.89 : 3,636.53 = 1,640.48 : x
2. Step 2: Convert to fraction form
   2,634.89/3,636.53 = 1,640.48/x
3. Step 3: Cross multiply
   2,634.89x = 3,636.53 × 1,640.48
4. Step 4: Simplify right side
   2,634.89x = 5,965,634.50
5. Step 5: Solve for x
   x = 5,965,634.50/2,634.89
6. Step 6: Final answer
   x = 2,264.10