Finding the Fourth Proportional to 2,238.89, 3,355.61 and 1,005.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.89 : 3,355.61 = 1,005.98 : x
2. Step 2: Convert to fraction form
   2,238.89/3,355.61 = 1,005.98/x
3. Step 3: Cross multiply
   2,238.89x = 3,355.61 × 1,005.98
4. Step 4: Simplify right side
   2,238.89x = 3,375,654.74
5. Step 5: Solve for x
   x = 3,375,654.74/2,238.89
6. Step 6: Final answer
   x = 1,507.74