Finding the Fourth Proportional to 2,179.43, 3,007.61 and 1,283.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.43 : 3,007.61 = 1,283.69 : x
2. Step 2: Convert to fraction form
   2,179.43/3,007.61 = 1,283.69/x
3. Step 3: Cross multiply
   2,179.43x = 3,007.61 × 1,283.69
4. Step 4: Simplify right side
   2,179.43x = 3,860,832.46
5. Step 5: Solve for x
   x = 3,860,832.46/2,179.43
6. Step 6: Final answer
   x = 1,771.49