Finding the Fourth Proportional to 1,480.68, 2,043.27 and 817.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,480.68 : 2,043.27 = 817.56 : x
2. Step 2: Convert to fraction form
   1,480.68/2,043.27 = 817.56/x
3. Step 3: Cross multiply
   1,480.68x = 2,043.27 × 817.56
4. Step 4: Simplify right side
   1,480.68x = 1,670,495.82
5. Step 5: Solve for x
   x = 1,670,495.82/1,480.68
6. Step 6: Final answer
   x = 1,128.20