Finding the Fourth Proportional to 1,710.78, 2,360.73 and 964.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,710.78 : 2,360.73 = 964.59 : x
2. Step 2: Convert to fraction form
   1,710.78/2,360.73 = 964.59/x
3. Step 3: Cross multiply
   1,710.78x = 2,360.73 × 964.59
4. Step 4: Simplify right side
   1,710.78x = 2,277,136.55
5. Step 5: Solve for x
   x = 2,277,136.55/1,710.78
6. Step 6: Final answer
   x = 1,331.05