Finding the Fourth Proportional to 2,179.47, 3,007.54 and 1,294.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.47 : 3,007.54 = 1,294.71 : x
2. Step 2: Convert to fraction form
   2,179.47/3,007.54 = 1,294.71/x
3. Step 3: Cross multiply
   2,179.47x = 3,007.54 × 1,294.71
4. Step 4: Simplify right side
   2,179.47x = 3,893,892.11
5. Step 5: Solve for x
   x = 3,893,892.11/2,179.47
6. Step 6: Final answer
   x = 1,786.62