Finding the Fourth Proportional to 1,724.82, 2,583.70 and 1,286.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.82 : 2,583.70 = 1,286.52 : x
2. Step 2: Convert to fraction form
   1,724.82/2,583.70 = 1,286.52/x
3. Step 3: Cross multiply
   1,724.82x = 2,583.70 × 1,286.52
4. Step 4: Simplify right side
   1,724.82x = 3,323,981.72
5. Step 5: Solve for x
   x = 3,323,981.72/1,724.82
6. Step 6: Final answer
   x = 1,927.15