Finding the Fourth Proportional to 1,672.54, 2,308.28 and 964.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.54 : 2,308.28 = 964.42 : x
2. Step 2: Convert to fraction form
   1,672.54/2,308.28 = 964.42/x
3. Step 3: Cross multiply
   1,672.54x = 2,308.28 × 964.42
4. Step 4: Simplify right side
   1,672.54x = 2,226,151.40
5. Step 5: Solve for x
   x = 2,226,151.40/1,672.54
6. Step 6: Final answer
   x = 1,331.00