Finding the Fourth Proportional to 1,663.34, 2,294.90 and 964.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663.34 : 2,294.90 = 964.58 : x
2. Step 2: Convert to fraction form
   1,663.34/2,294.90 = 964.58/x
3. Step 3: Cross multiply
   1,663.34x = 2,294.90 × 964.58
4. Step 4: Simplify right side
   1,663.34x = 2,213,609.82
5. Step 5: Solve for x
   x = 2,213,609.82/1,663.34
6. Step 6: Final answer
   x = 1,330.82