Finding the Fourth Proportional to 1,726.82, 2,582.35 and 1,288.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.82 : 2,582.35 = 1,288.38 : x
2. Step 2: Convert to fraction form
   1,726.82/2,582.35 = 1,288.38/x
3. Step 3: Cross multiply
   1,726.82x = 2,582.35 × 1,288.38
4. Step 4: Simplify right side
   1,726.82x = 3,327,048.09
5. Step 5: Solve for x
   x = 3,327,048.09/1,726.82
6. Step 6: Final answer
   x = 1,926.69