Finding the Fourth Proportional to 2,338, 3,506.16 and 1,039.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338 : 3,506.16 = 1,039.12 : x
2. Step 2: Convert to fraction form
   2,338/3,506.16 = 1,039.12/x
3. Step 3: Cross multiply
   2,338x = 3,506.16 × 1,039.12
4. Step 4: Simplify right side
   2,338x = 3,643,320.98
5. Step 5: Solve for x
   x = 3,643,320.98/2,338
6. Step 6: Final answer
   x = 1,558.31