Finding the Fourth Proportional to 3,667.95, 5,061.76 and 1,989.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.95 : 5,061.76 = 1,989.41 : x
2. Step 2: Convert to fraction form
   3,667.95/5,061.76 = 1,989.41/x
3. Step 3: Cross multiply
   3,667.95x = 5,061.76 × 1,989.41
4. Step 4: Simplify right side
   3,667.95x = 10,069,914.15
5. Step 5: Solve for x
   x = 10,069,914.15/3,667.95
6. Step 6: Final answer
   x = 2,745.38