Finding the Fourth Proportional to 3,103.89, 4,283.61 and 1,778.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,103.89 : 4,283.61 = 1,778.02 : x
2. Step 2: Convert to fraction form
   3,103.89/4,283.61 = 1,778.02/x
3. Step 3: Cross multiply
   3,103.89x = 4,283.61 × 1,778.02
4. Step 4: Simplify right side
   3,103.89x = 7,616,326.88
5. Step 5: Solve for x
   x = 7,616,326.88/3,103.89
6. Step 6: Final answer
   x = 2,453.80