Finding the Fourth Proportional to 1,456.71, 2,185.98 and 763.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.71 : 2,185.98 = 763.94 : x
2. Step 2: Convert to fraction form
   1,456.71/2,185.98 = 763.94/x
3. Step 3: Cross multiply
   1,456.71x = 2,185.98 × 763.94
4. Step 4: Simplify right side
   1,456.71x = 1,669,946.63
5. Step 5: Solve for x
   x = 1,669,946.63/1,456.71
6. Step 6: Final answer
   x = 1,146.38