Finding the Fourth Proportional to 2,291.82, 3,162.54 and 1,297.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.82 : 3,162.54 = 1,297.20 : x
2. Step 2: Convert to fraction form
   2,291.82/3,162.54 = 1,297.20/x
3. Step 3: Cross multiply
   2,291.82x = 3,162.54 × 1,297.20
4. Step 4: Simplify right side
   2,291.82x = 4,102,454.79
5. Step 5: Solve for x
   x = 4,102,454.79/2,291.82
6. Step 6: Final answer
   x = 1,790.05