Finding the Fourth Proportional to 3,339.39, 5,007.43 and 1,778.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,339.39 : 5,007.43 = 1,778.98 : x
2. Step 2: Convert to fraction form
   3,339.39/5,007.43 = 1,778.98/x
3. Step 3: Cross multiply
   3,339.39x = 5,007.43 × 1,778.98
4. Step 4: Simplify right side
   3,339.39x = 8,908,083.89
5. Step 5: Solve for x
   x = 8,908,083.89/3,339.39
6. Step 6: Final answer
   x = 2,667.58