Finding the Fourth Proportional to 1,672.37, 2,308.04 and 964.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.37 : 2,308.04 = 964.43 : x
2. Step 2: Convert to fraction form
   1,672.37/2,308.04 = 964.43/x
3. Step 3: Cross multiply
   1,672.37x = 2,308.04 × 964.43
4. Step 4: Simplify right side
   1,672.37x = 2,225,926.65
5. Step 5: Solve for x
   x = 2,225,926.65/1,672.37
6. Step 6: Final answer
   x = 1,331.01