Finding the Fourth Proportional to 1,640.04, 2,441.50 and 1,630.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640.04 : 2,441.50 = 1,630.31 : x
2. Step 2: Convert to fraction form
   1,640.04/2,441.50 = 1,630.31/x
3. Step 3: Cross multiply
   1,640.04x = 2,441.50 × 1,630.31
4. Step 4: Simplify right side
   1,640.04x = 3,980,401.87
5. Step 5: Solve for x
   x = 3,980,401.87/1,640.04
6. Step 6: Final answer
   x = 2,427.02