Finding the Fourth Proportional to 1,048.82, 1,447.31 and 606.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048.82 : 1,447.31 = 606.69 : x
2. Step 2: Convert to fraction form
   1,048.82/1,447.31 = 606.69/x
3. Step 3: Cross multiply
   1,048.82x = 1,447.31 × 606.69
4. Step 4: Simplify right side
   1,048.82x = 878,068.50
5. Step 5: Solve for x
   x = 878,068.50/1,048.82
6. Step 6: Final answer
   x = 837.20