Finding the Fourth Proportional to 2,061.64, 2,845.13 and 1,165.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.64 : 2,845.13 = 1,165.42 : x
2. Step 2: Convert to fraction form
   2,061.64/2,845.13 = 1,165.42/x
3. Step 3: Cross multiply
   2,061.64x = 2,845.13 × 1,165.42
4. Step 4: Simplify right side
   2,061.64x = 3,315,771.40
5. Step 5: Solve for x
   x = 3,315,771.40/2,061.64
6. Step 6: Final answer
   x = 1,608.32