Finding the Fourth Proportional to 2,059.96, 3,087.18 and 1,329.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.96 : 3,087.18 = 1,329.16 : x
2. Step 2: Convert to fraction form
   2,059.96/3,087.18 = 1,329.16/x
3. Step 3: Cross multiply
   2,059.96x = 3,087.18 × 1,329.16
4. Step 4: Simplify right side
   2,059.96x = 4,103,356.17
5. Step 5: Solve for x
   x = 4,103,356.17/2,059.96
6. Step 6: Final answer
   x = 1,991.96