Finding the Fourth Proportional to 2,288.17, 3,157.56 and 1,293.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.17 : 3,157.56 = 1,293.39 : x
2. Step 2: Convert to fraction form
   2,288.17/3,157.56 = 1,293.39/x
3. Step 3: Cross multiply
   2,288.17x = 3,157.56 × 1,293.39
4. Step 4: Simplify right side
   2,288.17x = 4,083,957.96
5. Step 5: Solve for x
   x = 4,083,957.96/2,288.17
6. Step 6: Final answer
   x = 1,784.81