Finding the Fourth Proportional to 2,883.42, 4,323.69 and 1,239.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,883.42 : 4,323.69 = 1,239.03 : x
2. Step 2: Convert to fraction form
   2,883.42/4,323.69 = 1,239.03/x
3. Step 3: Cross multiply
   2,883.42x = 4,323.69 × 1,239.03
4. Step 4: Simplify right side
   2,883.42x = 5,357,181.62
5. Step 5: Solve for x
   x = 5,357,181.62/2,883.42
6. Step 6: Final answer
   x = 1,857.93