Finding the Fourth Proportional to 2,564.79, 3,845.82 and 1,329.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564.79 : 3,845.82 = 1,329.14 : x
2. Step 2: Convert to fraction form
   2,564.79/3,845.82 = 1,329.14/x
3. Step 3: Cross multiply
   2,564.79x = 3,845.82 × 1,329.14
4. Step 4: Simplify right side
   2,564.79x = 5,111,607.32
5. Step 5: Solve for x
   x = 5,111,607.32/2,564.79
6. Step 6: Final answer
   x = 1,992.99