Finding the Fourth Proportional to 1,628.92, 2,247.89 and 930.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628.92 : 2,247.89 = 930.43 : x
2. Step 2: Convert to fraction form
   1,628.92/2,247.89 = 930.43/x
3. Step 3: Cross multiply
   1,628.92x = 2,247.89 × 930.43
4. Step 4: Simplify right side
   1,628.92x = 2,091,494.02
5. Step 5: Solve for x
   x = 2,091,494.02/1,628.92
6. Step 6: Final answer
   x = 1,283.98