Finding the Fourth Proportional to 1,250.71, 1,725.98 and 683.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,250.71 : 1,725.98 = 683.55 : x
2. Step 2: Convert to fraction form
   1,250.71/1,725.98 = 683.55/x
3. Step 3: Cross multiply
   1,250.71x = 1,725.98 × 683.55
4. Step 4: Simplify right side
   1,250.71x = 1,179,794.93
5. Step 5: Solve for x
   x = 1,179,794.93/1,250.71
6. Step 6: Final answer
   x = 943.30