Finding the Fourth Proportional to 3,493.38, 5,238.72 and 1,412.85

Step by Step Solution

1. Step 1: Write the proportion equation
   3,493.38 : 5,238.72 = 1,412.85 : x
2. Step 2: Convert to fraction form
   3,493.38/5,238.72 = 1,412.85/x
3. Step 3: Cross multiply
   3,493.38x = 5,238.72 × 1,412.85
4. Step 4: Simplify right side
   3,493.38x = 7,401,525.55
5. Step 5: Solve for x
   x = 7,401,525.55/3,493.38
6. Step 6: Final answer
   x = 2,118.73