Finding the Fourth Proportional to 3,403.72, 5,105.40 and 1,456.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,403.72 : 5,105.40 = 1,456.12 : x
2. Step 2: Convert to fraction form
   3,403.72/5,105.40 = 1,456.12/x
3. Step 3: Cross multiply
   3,403.72x = 5,105.40 × 1,456.12
4. Step 4: Simplify right side
   3,403.72x = 7,434,075.05
5. Step 5: Solve for x
   x = 7,434,075.05/3,403.72
6. Step 6: Final answer
   x = 2,184.10