Finding the Fourth Proportional to 1,783.59, 2,691.33 and 1,716.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.59 : 2,691.33 = 1,716.09 : x
2. Step 2: Convert to fraction form
   1,783.59/2,691.33 = 1,716.09/x
3. Step 3: Cross multiply
   1,783.59x = 2,691.33 × 1,716.09
4. Step 4: Simplify right side
   1,783.59x = 4,618,564.50
5. Step 5: Solve for x
   x = 4,618,564.50/1,783.59
6. Step 6: Final answer
   x = 2,589.48