Finding the Fourth Proportional to 1,732.88, 2,582.86 and 1,686.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,732.88 : 2,582.86 = 1,686.72 : x
2. Step 2: Convert to fraction form
   1,732.88/2,582.86 = 1,686.72/x
3. Step 3: Cross multiply
   1,732.88x = 2,582.86 × 1,686.72
4. Step 4: Simplify right side
   1,732.88x = 4,356,561.62
5. Step 5: Solve for x
   x = 4,356,561.62/1,732.88
6. Step 6: Final answer
   x = 2,514.06