Finding the Fourth Proportional to 3,399.46, 4,692.59 and 2,279.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,399.46 : 4,692.59 = 2,279.99 : x
2. Step 2: Convert to fraction form
   3,399.46/4,692.59 = 2,279.99/x
3. Step 3: Cross multiply
   3,399.46x = 4,692.59 × 2,279.99
4. Step 4: Simplify right side
   3,399.46x = 10,699,058.27
5. Step 5: Solve for x
   x = 10,699,058.27/3,399.46
6. Step 6: Final answer
   x = 3,147.28