Finding the Fourth Proportional to 2,288.19, 3,157.71 and 1,293.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.19 : 3,157.71 = 1,293.47 : x
2. Step 2: Convert to fraction form
   2,288.19/3,157.71 = 1,293.47/x
3. Step 3: Cross multiply
   2,288.19x = 3,157.71 × 1,293.47
4. Step 4: Simplify right side
   2,288.19x = 4,084,406.20
5. Step 5: Solve for x
   x = 4,084,406.20/2,288.19
6. Step 6: Final answer
   x = 1,784.99