Finding the Fourth Proportional to 1,048.89, 1,447.38 and 606.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048.89 : 1,447.38 = 606.72 : x
2. Step 2: Convert to fraction form
   1,048.89/1,447.38 = 606.72/x
3. Step 3: Cross multiply
   1,048.89x = 1,447.38 × 606.72
4. Step 4: Simplify right side
   1,048.89x = 878,154.39
5. Step 5: Solve for x
   x = 878,154.39/1,048.89
6. Step 6: Final answer
   x = 837.22