Finding the Fourth Proportional to 1,727.84, 2,589.32 and 1,239.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,727.84 : 2,589.32 = 1,239.82 : x
2. Step 2: Convert to fraction form
   1,727.84/2,589.32 = 1,239.82/x
3. Step 3: Cross multiply
   1,727.84x = 2,589.32 × 1,239.82
4. Step 4: Simplify right side
   1,727.84x = 3,210,290.72
5. Step 5: Solve for x
   x = 3,210,290.72/1,727.84
6. Step 6: Final answer
   x = 1,857.98