Finding the Fourth Proportional to 1,552.94, 2,143.52 and 1,238.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.94 : 2,143.52 = 1,238.09 : x
2. Step 2: Convert to fraction form
   1,552.94/2,143.52 = 1,238.09/x
3. Step 3: Cross multiply
   1,552.94x = 2,143.52 × 1,238.09
4. Step 4: Simplify right side
   1,552.94x = 2,653,870.68
5. Step 5: Solve for x
   x = 2,653,870.68/1,552.94
6. Step 6: Final answer
   x = 1,708.93