Finding the Fourth Proportional to 1,768.18, 2,443.22 and 1,272.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,768.18 : 2,443.22 = 1,272.46 : x
2. Step 2: Convert to fraction form
   1,768.18/2,443.22 = 1,272.46/x
3. Step 3: Cross multiply
   1,768.18x = 2,443.22 × 1,272.46
4. Step 4: Simplify right side
   1,768.18x = 3,108,899.72
5. Step 5: Solve for x
   x = 3,108,899.72/1,768.18
6. Step 6: Final answer
   x = 1,758.25