Finding the Fourth Proportional to 1,481.17, 2,043.96 and 818.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,481.17 : 2,043.96 = 818.05 : x
2. Step 2: Convert to fraction form
   1,481.17/2,043.96 = 818.05/x
3. Step 3: Cross multiply
   1,481.17x = 2,043.96 × 818.05
4. Step 4: Simplify right side
   1,481.17x = 1,672,061.48
5. Step 5: Solve for x
   x = 1,672,061.48/1,481.17
6. Step 6: Final answer
   x = 1,128.88