Finding the Fourth Proportional to 3,979.02, 5,964.42 and 1,788.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,979.02 : 5,964.42 = 1,788.38 : x
2. Step 2: Convert to fraction form
   3,979.02/5,964.42 = 1,788.38/x
3. Step 3: Cross multiply
   3,979.02x = 5,964.42 × 1,788.38
4. Step 4: Simplify right side
   3,979.02x = 10,666,619.62
5. Step 5: Solve for x
   x = 10,666,619.62/3,979.02
6. Step 6: Final answer
   x = 2,680.72