Finding the Fourth Proportional to 1,094.34, 1,640.89 and 964.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.34 : 1,640.89 = 964.65 : x
2. Step 2: Convert to fraction form
   1,094.34/1,640.89 = 964.65/x
3. Step 3: Cross multiply
   1,094.34x = 1,640.89 × 964.65
4. Step 4: Simplify right side
   1,094.34x = 1,582,879.72
5. Step 5: Solve for x
   x = 1,582,879.72/1,094.34
6. Step 6: Final answer
   x = 1,446.42