Finding the Fourth Proportional to 1,495.78, 2,063.01 and 964.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,495.78 : 2,063.01 = 964.72 : x
2. Step 2: Convert to fraction form
   1,495.78/2,063.01 = 964.72/x
3. Step 3: Cross multiply
   1,495.78x = 2,063.01 × 964.72
4. Step 4: Simplify right side
   1,495.78x = 1,990,227.01
5. Step 5: Solve for x
   x = 1,990,227.01/1,495.78
6. Step 6: Final answer
   x = 1,330.56