Finding the Fourth Proportional to 1,004.83, 1,507.25 and 274.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.83 : 1,507.25 = 274.42 : x
2. Step 2: Convert to fraction form
   1,004.83/1,507.25 = 274.42/x
3. Step 3: Cross multiply
   1,004.83x = 1,507.25 × 274.42
4. Step 4: Simplify right side
   1,004.83x = 413,616.46
5. Step 5: Solve for x
   x = 413,616.46/1,004.83
6. Step 6: Final answer
   x = 411.63