Finding the Fourth Proportional to 3,667.50, 5,061.15 and 2,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.50 : 5,061.15 = 2,011.50 : x
2. Step 2: Convert to fraction form
   3,667.50/5,061.15 = 2,011.50/x
3. Step 3: Cross multiply
   3,667.50x = 5,061.15 × 2,011.50
4. Step 4: Simplify right side
   3,667.50x = 10,180,503.23
5. Step 5: Solve for x
   x = 10,180,503.23/3,667.50
6. Step 6: Final answer
   x = 2,775.87