Finding the Fourth Proportional to 1,047.34, 1,445.39 and 605.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.34 : 1,445.39 = 605.39 : x
2. Step 2: Convert to fraction form
   1,047.34/1,445.39 = 605.39/x
3. Step 3: Cross multiply
   1,047.34x = 1,445.39 × 605.39
4. Step 4: Simplify right side
   1,047.34x = 875,014.40
5. Step 5: Solve for x
   x = 875,014.40/1,047.34
6. Step 6: Final answer
   x = 835.47