Finding the Fourth Proportional to 2,986.01, 4,119.31 and 1,790.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,986.01 : 4,119.31 = 1,790.45 : x
2. Step 2: Convert to fraction form
   2,986.01/4,119.31 = 1,790.45/x
3. Step 3: Cross multiply
   2,986.01x = 4,119.31 × 1,790.45
4. Step 4: Simplify right side
   2,986.01x = 7,375,428.78
5. Step 5: Solve for x
   x = 7,375,428.78/2,986.01
6. Step 6: Final answer
   x = 2,469.99