Finding the Fourth Proportional to 2,291.25, 3,162.14 and 1,296.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.25 : 3,162.14 = 1,296.61 : x
2. Step 2: Convert to fraction form
   2,291.25/3,162.14 = 1,296.61/x
3. Step 3: Cross multiply
   2,291.25x = 3,162.14 × 1,296.61
4. Step 4: Simplify right side
   2,291.25x = 4,100,052.82
5. Step 5: Solve for x
   x = 4,100,052.82/2,291.25
6. Step 6: Final answer
   x = 1,789.44