Finding the Fourth Proportional to 3,116.61, 4,300.83 and 1,789.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116.61 : 4,300.83 = 1,789.83 : x
2. Step 2: Convert to fraction form
   3,116.61/4,300.83 = 1,789.83/x
3. Step 3: Cross multiply
   3,116.61x = 4,300.83 × 1,789.83
4. Step 4: Simplify right side
   3,116.61x = 7,697,754.56
5. Step 5: Solve for x
   x = 7,697,754.56/3,116.61
6. Step 6: Final answer
   x = 2,469.91