Finding the Fourth Proportional to 3,680.15, 5,078.53 and 2,001.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680.15 : 5,078.53 = 2,001.50 : x
2. Step 2: Convert to fraction form
   3,680.15/5,078.53 = 2,001.50/x
3. Step 3: Cross multiply
   3,680.15x = 5,078.53 × 2,001.50
4. Step 4: Simplify right side
   3,680.15x = 10,164,673.95
5. Step 5: Solve for x
   x = 10,164,673.95/3,680.15
6. Step 6: Final answer
   x = 2,762.03