Finding the Fourth Proportional to 3,926.82, 5,890.50 and 1,329.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,926.82 : 5,890.50 = 1,329.78 : x
2. Step 2: Convert to fraction form
   3,926.82/5,890.50 = 1,329.78/x
3. Step 3: Cross multiply
   3,926.82x = 5,890.50 × 1,329.78
4. Step 4: Simplify right side
   3,926.82x = 7,833,069.09
5. Step 5: Solve for x
   x = 7,833,069.09/3,926.82
6. Step 6: Final answer
   x = 1,994.76