Finding the Fourth Proportional to 2,290.55, 3,161.10 and 1,295.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.55 : 3,161.10 = 1,295.82 : x
2. Step 2: Convert to fraction form
   2,290.55/3,161.10 = 1,295.82/x
3. Step 3: Cross multiply
   2,290.55x = 3,161.10 × 1,295.82
4. Step 4: Simplify right side
   2,290.55x = 4,096,221.46
5. Step 5: Solve for x
   x = 4,096,221.46/2,290.55
6. Step 6: Final answer
   x = 1,788.32