Finding the Fourth Proportional to 1,304.93, 1,800.81 and 715.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,304.93 : 1,800.81 = 715.46 : x
2. Step 2: Convert to fraction form
   1,304.93/1,800.81 = 715.46/x
3. Step 3: Cross multiply
   1,304.93x = 1,800.81 × 715.46
4. Step 4: Simplify right side
   1,304.93x = 1,288,398.52
5. Step 5: Solve for x
   x = 1,288,398.52/1,304.93
6. Step 6: Final answer
   x = 987.33