Finding the Fourth Proportional to 2,798.50, 3,861.86 and 1,539.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.50 : 3,861.86 = 1,539.52 : x
2. Step 2: Convert to fraction form
   2,798.50/3,861.86 = 1,539.52/x
3. Step 3: Cross multiply
   2,798.50x = 3,861.86 × 1,539.52
4. Step 4: Simplify right side
   2,798.50x = 5,945,410.71
5. Step 5: Solve for x
   x = 5,945,410.71/2,798.50
6. Step 6: Final answer
   x = 2,124.50