Finding the Fourth Proportional to 1,663.48, 2,296.38 and 964.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663.48 : 2,296.38 = 964.72 : x
2. Step 2: Convert to fraction form
   1,663.48/2,296.38 = 964.72/x
3. Step 3: Cross multiply
   1,663.48x = 2,296.38 × 964.72
4. Step 4: Simplify right side
   1,663.48x = 2,215,363.71
5. Step 5: Solve for x
   x = 2,215,363.71/1,663.48
6. Step 6: Final answer
   x = 1,331.76