Finding the Fourth Proportional to 3,591.86, 4,956.78 and 1,998.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591.86 : 4,956.78 = 1,998.50 : x
2. Step 2: Convert to fraction form
   3,591.86/4,956.78 = 1,998.50/x
3. Step 3: Cross multiply
   3,591.86x = 4,956.78 × 1,998.50
4. Step 4: Simplify right side
   3,591.86x = 9,906,124.83
5. Step 5: Solve for x
   x = 9,906,124.83/3,591.86
6. Step 6: Final answer
   x = 2,757.94