Finding the Fourth Proportional to 1,723.67, 2,586.56 and 683.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,723.67 : 2,586.56 = 683.49 : x
2. Step 2: Convert to fraction form
   1,723.67/2,586.56 = 683.49/x
3. Step 3: Cross multiply
   1,723.67x = 2,586.56 × 683.49
4. Step 4: Simplify right side
   1,723.67x = 1,767,887.89
5. Step 5: Solve for x
   x = 1,767,887.89/1,723.67
6. Step 6: Final answer
   x = 1,025.65