Finding the Fourth Proportional to 2,291.57, 3,162.20 and 1,296.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.57 : 3,162.20 = 1,296.95 : x
2. Step 2: Convert to fraction form
   2,291.57/3,162.20 = 1,296.95/x
3. Step 3: Cross multiply
   2,291.57x = 3,162.20 × 1,296.95
4. Step 4: Simplify right side
   2,291.57x = 4,101,216.71
5. Step 5: Solve for x
   x = 4,101,216.71/2,291.57
6. Step 6: Final answer
   x = 1,789.70