Finding the Fourth Proportional to 2,287.96, 3,157.55 and 1,293.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.96 : 3,157.55 = 1,293.34 : x
2. Step 2: Convert to fraction form
   2,287.96/3,157.55 = 1,293.34/x
3. Step 3: Cross multiply
   2,287.96x = 3,157.55 × 1,293.34
4. Step 4: Simplify right side
   2,287.96x = 4,083,785.72
5. Step 5: Solve for x
   x = 4,083,785.72/2,287.96
6. Step 6: Final answer
   x = 1,784.90