Finding the Fourth Proportional to 1,725.33, 2,380.98 and 939.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.33 : 2,380.98 = 939.39 : x
2. Step 2: Convert to fraction form
   1,725.33/2,380.98 = 939.39/x
3. Step 3: Cross multiply
   1,725.33x = 2,380.98 × 939.39
4. Step 4: Simplify right side
   1,725.33x = 2,236,656.90
5. Step 5: Solve for x
   x = 2,236,656.90/1,725.33
6. Step 6: Final answer
   x = 1,296.37