Finding the Fourth Proportional to 2,290.54, 3,155.61 and 1,896.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.54 : 3,155.61 = 1,896.34 : x
2. Step 2: Convert to fraction form
   2,290.54/3,155.61 = 1,896.34/x
3. Step 3: Cross multiply
   2,290.54x = 3,155.61 × 1,896.34
4. Step 4: Simplify right side
   2,290.54x = 5,984,109.47
5. Step 5: Solve for x
   x = 5,984,109.47/2,290.54
6. Step 6: Final answer
   x = 2,612.53