Finding the Fourth Proportional to 3,464.72, 5,189.12 and 2,075.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,464.72 : 5,189.12 = 2,075.28 : x
2. Step 2: Convert to fraction form
   3,464.72/5,189.12 = 2,075.28/x
3. Step 3: Cross multiply
   3,464.72x = 5,189.12 × 2,075.28
4. Step 4: Simplify right side
   3,464.72x = 10,768,876.95
5. Step 5: Solve for x
   x = 10,768,876.95/3,464.72
6. Step 6: Final answer
   x = 3,108.15