Finding the Fourth Proportional to 1,419.03, 2,128.41 and 494.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.03 : 2,128.41 = 494.42 : x
2. Step 2: Convert to fraction form
   1,419.03/2,128.41 = 494.42/x
3. Step 3: Cross multiply
   1,419.03x = 2,128.41 × 494.42
4. Step 4: Simplify right side
   1,419.03x = 1,052,317.83
5. Step 5: Solve for x
   x = 1,052,317.83/1,419.03
6. Step 6: Final answer
   x = 741.58