Finding the Fourth Proportional to 1,047.45, 1,445.46 and 605.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.45 : 1,445.46 = 605.34 : x
2. Step 2: Convert to fraction form
   1,047.45/1,445.46 = 605.34/x
3. Step 3: Cross multiply
   1,047.45x = 1,445.46 × 605.34
4. Step 4: Simplify right side
   1,047.45x = 874,994.76
5. Step 5: Solve for x
   x = 874,994.76/1,047.45
6. Step 6: Final answer
   x = 835.36