Finding the Fourth Proportional to 2,089.60, 3,132.33 and 1,165.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.60 : 3,132.33 = 1,165.59 : x
2. Step 2: Convert to fraction form
   2,089.60/3,132.33 = 1,165.59/x
3. Step 3: Cross multiply
   2,089.60x = 3,132.33 × 1,165.59
4. Step 4: Simplify right side
   2,089.60x = 3,650,996.86
5. Step 5: Solve for x
   x = 3,650,996.86/2,089.60
6. Step 6: Final answer
   x = 1,747.23