Finding the Fourth Proportional to 1,627.48, 2,245.92 and 928.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.48 : 2,245.92 = 928.84 : x
2. Step 2: Convert to fraction form
   1,627.48/2,245.92 = 928.84/x
3. Step 3: Cross multiply
   1,627.48x = 2,245.92 × 928.84
4. Step 4: Simplify right side
   1,627.48x = 2,086,100.33
5. Step 5: Solve for x
   x = 2,086,100.33/1,627.48
6. Step 6: Final answer
   x = 1,281.80