Finding the Fourth Proportional to 2,238.63, 3,089.28 and 1,243.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.63 : 3,089.28 = 1,243.93 : x
2. Step 2: Convert to fraction form
   2,238.63/3,089.28 = 1,243.93/x
3. Step 3: Cross multiply
   2,238.63x = 3,089.28 × 1,243.93
4. Step 4: Simplify right side
   2,238.63x = 3,842,848.07
5. Step 5: Solve for x
   x = 3,842,848.07/2,238.63
6. Step 6: Final answer
   x = 1,716.61