Finding the Fourth Proportional to 1,604.56, 2,406.42 and 630.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.56 : 2,406.42 = 630.12 : x
2. Step 2: Convert to fraction form
   1,604.56/2,406.42 = 630.12/x
3. Step 3: Cross multiply
   1,604.56x = 2,406.42 × 630.12
4. Step 4: Simplify right side
   1,604.56x = 1,516,333.37
5. Step 5: Solve for x
   x = 1,516,333.37/1,604.56
6. Step 6: Final answer
   x = 945.02