Finding the Fourth Proportional to 1,316.32, 1,816.49 and 726.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316.32 : 1,816.49 = 726.82 : x
2. Step 2: Convert to fraction form
   1,316.32/1,816.49 = 726.82/x
3. Step 3: Cross multiply
   1,316.32x = 1,816.49 × 726.82
4. Step 4: Simplify right side
   1,316.32x = 1,320,258.54
5. Step 5: Solve for x
   x = 1,320,258.54/1,316.32
6. Step 6: Final answer
   x = 1,002.99