Finding the Fourth Proportional to 1,792.52, 2,688.47 and 818.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,792.52 : 2,688.47 = 818.39 : x
2. Step 2: Convert to fraction form
   1,792.52/2,688.47 = 818.39/x
3. Step 3: Cross multiply
   1,792.52x = 2,688.47 × 818.39
4. Step 4: Simplify right side
   1,792.52x = 2,200,199.43
5. Step 5: Solve for x
   x = 2,200,199.43/1,792.52
6. Step 6: Final answer
   x = 1,227.44