Finding the Fourth Proportional to 1,488.64, 2,053.56 and 964.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.64 : 2,053.56 = 964.84 : x
2. Step 2: Convert to fraction form
   1,488.64/2,053.56 = 964.84/x
3. Step 3: Cross multiply
   1,488.64x = 2,053.56 × 964.84
4. Step 4: Simplify right side
   1,488.64x = 1,981,356.83
5. Step 5: Solve for x
   x = 1,981,356.83/1,488.64
6. Step 6: Final answer
   x = 1,330.98