Finding the Fourth Proportional to 2,238.84, 3,089.64 and 1,230.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.84 : 3,089.64 = 1,230.54 : x
2. Step 2: Convert to fraction form
   2,238.84/3,089.64 = 1,230.54/x
3. Step 3: Cross multiply
   2,238.84x = 3,089.64 × 1,230.54
4. Step 4: Simplify right side
   2,238.84x = 3,801,925.61
5. Step 5: Solve for x
   x = 3,801,925.61/2,238.84
6. Step 6: Final answer
   x = 1,698.17