Finding the Fourth Proportional to 1,359.72, 2,039.94 and 494.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.72 : 2,039.94 = 494.10 : x
2. Step 2: Convert to fraction form
   1,359.72/2,039.94 = 494.10/x
3. Step 3: Cross multiply
   1,359.72x = 2,039.94 × 494.10
4. Step 4: Simplify right side
   1,359.72x = 1,007,934.35
5. Step 5: Solve for x
   x = 1,007,934.35/1,359.72
6. Step 6: Final answer
   x = 741.28