Finding the Fourth Proportional to 1,004.59, 1,506.71 and 273.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.59 : 1,506.71 = 273.99 : x
2. Step 2: Convert to fraction form
   1,004.59/1,506.71 = 273.99/x
3. Step 3: Cross multiply
   1,004.59x = 1,506.71 × 273.99
4. Step 4: Simplify right side
   1,004.59x = 412,822.10
5. Step 5: Solve for x
   x = 412,822.10/1,004.59
6. Step 6: Final answer
   x = 410.94