Finding the Fourth Proportional to 2,291.53, 3,162.31 and 1,296.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.53 : 3,162.31 = 1,296.79 : x
2. Step 2: Convert to fraction form
   2,291.53/3,162.31 = 1,296.79/x
3. Step 3: Cross multiply
   2,291.53x = 3,162.31 × 1,296.79
4. Step 4: Simplify right side
   2,291.53x = 4,100,836.17
5. Step 5: Solve for x
   x = 4,100,836.17/2,291.53
6. Step 6: Final answer
   x = 1,789.57