Finding the Fourth Proportional to 1,322.71, 1,825.29 and 763.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.71 : 1,825.29 = 763.20 : x
2. Step 2: Convert to fraction form
   1,322.71/1,825.29 = 763.20/x
3. Step 3: Cross multiply
   1,322.71x = 1,825.29 × 763.20
4. Step 4: Simplify right side
   1,322.71x = 1,393,061.33
5. Step 5: Solve for x
   x = 1,393,061.33/1,322.71
6. Step 6: Final answer
   x = 1,053.19