Finding the Fourth Proportional to 5,112.63, 7,664.78 and 1,600.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,112.63 : 7,664.78 = 1,600.83 : x
2. Step 2: Convert to fraction form
   5,112.63/7,664.78 = 1,600.83/x
3. Step 3: Cross multiply
   5,112.63x = 7,664.78 × 1,600.83
4. Step 4: Simplify right side
   5,112.63x = 12,270,013.77
5. Step 5: Solve for x
   x = 12,270,013.77/5,112.63
6. Step 6: Final answer
   x = 2,399.94