Finding the Fourth Proportional to 1,631.09, 2,250.89 and 968.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631.09 : 2,250.89 = 968.05 : x
2. Step 2: Convert to fraction form
   1,631.09/2,250.89 = 968.05/x
3. Step 3: Cross multiply
   1,631.09x = 2,250.89 × 968.05
4. Step 4: Simplify right side
   1,631.09x = 2,178,975.67
5. Step 5: Solve for x
   x = 2,178,975.67/1,631.09
6. Step 6: Final answer
   x = 1,335.90