Finding the Fourth Proportional to 1,016.45, 1,522.72 and 604.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.45 : 1,522.72 = 604.34 : x
2. Step 2: Convert to fraction form
   1,016.45/1,522.72 = 604.34/x
3. Step 3: Cross multiply
   1,016.45x = 1,522.72 × 604.34
4. Step 4: Simplify right side
   1,016.45x = 920,232.99
5. Step 5: Solve for x
   x = 920,232.99/1,016.45
6. Step 6: Final answer
   x = 905.34