Finding the Fourth Proportional to 1,789.89, 2,685.60 and 968.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.89 : 2,685.60 = 968.75 : x
2. Step 2: Convert to fraction form
   1,789.89/2,685.60 = 968.75/x
3. Step 3: Cross multiply
   1,789.89x = 2,685.60 × 968.75
4. Step 4: Simplify right side
   1,789.89x = 2,601,661.57
5. Step 5: Solve for x
   x = 2,601,661.57/1,789.89
6. Step 6: Final answer
   x = 1,453.53