Finding the Fourth Proportional to 1,407.71, 1,940.82 and 964.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.71 : 1,940.82 = 964.82 : x
2. Step 2: Convert to fraction form
   1,407.71/1,940.82 = 964.82/x
3. Step 3: Cross multiply
   1,407.71x = 1,940.82 × 964.82
4. Step 4: Simplify right side
   1,407.71x = 1,872,541.95
5. Step 5: Solve for x
   x = 1,872,541.95/1,407.71
6. Step 6: Final answer
   x = 1,330.20