Finding the Fourth Proportional to 2,291.04, 3,161.61 and 1,296.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.04 : 3,161.61 = 1,296.33 : x
2. Step 2: Convert to fraction form
   2,291.04/3,161.61 = 1,296.33/x
3. Step 3: Cross multiply
   2,291.04x = 3,161.61 × 1,296.33
4. Step 4: Simplify right side
   2,291.04x = 4,098,489.89
5. Step 5: Solve for x
   x = 4,098,489.89/2,291.04
6. Step 6: Final answer
   x = 1,788.92