Finding the Fourth Proportional to 3,087.93, 4,628.52 and 1,238.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,087.93 : 4,628.52 = 1,238.52 : x
2. Step 2: Convert to fraction form
   3,087.93/4,628.52 = 1,238.52/x
3. Step 3: Cross multiply
   3,087.93x = 4,628.52 × 1,238.52
4. Step 4: Simplify right side
   3,087.93x = 5,732,514.59
5. Step 5: Solve for x
   x = 5,732,514.59/3,087.93
6. Step 6: Final answer
   x = 1,856.43