Finding the Fourth Proportional to 3,059.67, 4,190.71 and 2,880.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,059.67 : 4,190.71 = 2,880.14 : x
2. Step 2: Convert to fraction form
   3,059.67/4,190.71 = 2,880.14/x
3. Step 3: Cross multiply
   3,059.67x = 4,190.71 × 2,880.14
4. Step 4: Simplify right side
   3,059.67x = 12,069,834.78
5. Step 5: Solve for x
   x = 12,069,834.78/3,059.67
6. Step 6: Final answer
   x = 3,944.82