Finding the Fourth Proportional to 2,291.52, 3,162.24 and 1,296.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.52 : 3,162.24 = 1,296.90 : x
2. Step 2: Convert to fraction form
   2,291.52/3,162.24 = 1,296.90/x
3. Step 3: Cross multiply
   2,291.52x = 3,162.24 × 1,296.90
4. Step 4: Simplify right side
   2,291.52x = 4,101,109.06
5. Step 5: Solve for x
   x = 4,101,109.06/2,291.52
6. Step 6: Final answer
   x = 1,789.69