Finding the Fourth Proportional to 3,429.93, 5,144.94 and 1,238.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429.93 : 5,144.94 = 1,238.52 : x
2. Step 2: Convert to fraction form
   3,429.93/5,144.94 = 1,238.52/x
3. Step 3: Cross multiply
   3,429.93x = 5,144.94 × 1,238.52
4. Step 4: Simplify right side
   3,429.93x = 6,372,111.09
5. Step 5: Solve for x
   x = 6,372,111.09/3,429.93
6. Step 6: Final answer
   x = 1,857.80