Finding the Fourth Proportional to 2,277.12, 3,144.96 and 1,720.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,277.12 : 3,144.96 = 1,720.32 : x
2. Step 2: Convert to fraction form
   2,277.12/3,144.96 = 1,720.32/x
3. Step 3: Cross multiply
   2,277.12x = 3,144.96 × 1,720.32
4. Step 4: Simplify right side
   2,277.12x = 5,410,337.59
5. Step 5: Solve for x
   x = 5,410,337.59/2,277.12
6. Step 6: Final answer
   x = 2,375.96