Finding the Fourth Proportional to 2,798.39, 3,861.83 and 1,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.39 : 3,861.83 = 1,539.50 : x
2. Step 2: Convert to fraction form
   2,798.39/3,861.83 = 1,539.50/x
3. Step 3: Cross multiply
   2,798.39x = 3,861.83 × 1,539.50
4. Step 4: Simplify right side
   2,798.39x = 5,945,287.29
5. Step 5: Solve for x
   x = 5,945,287.29/2,798.39
6. Step 6: Final answer
   x = 2,124.54