Finding the Fourth Proportional to 2,814.75, 4,219.23 and 1,172.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,814.75 : 4,219.23 = 1,172.25 : x
2. Step 2: Convert to fraction form
   2,814.75/4,219.23 = 1,172.25/x
3. Step 3: Cross multiply
   2,814.75x = 4,219.23 × 1,172.25
4. Step 4: Simplify right side
   2,814.75x = 4,945,992.37
5. Step 5: Solve for x
   x = 4,945,992.37/2,814.75
6. Step 6: Final answer
   x = 1,757.17