Finding the Fourth Proportional to 1,793.23, 2,687.41 and 928.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,793.23 : 2,687.41 = 928.15 : x
2. Step 2: Convert to fraction form
   1,793.23/2,687.41 = 928.15/x
3. Step 3: Cross multiply
   1,793.23x = 2,687.41 × 928.15
4. Step 4: Simplify right side
   1,793.23x = 2,494,319.59
5. Step 5: Solve for x
   x = 2,494,319.59/1,793.23
6. Step 6: Final answer
   x = 1,390.96