Finding the Fourth Proportional to 2,039.12, 2,811.50 and 1,723.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.12 : 2,811.50 = 1,723.82 : x
2. Step 2: Convert to fraction form
   2,039.12/2,811.50 = 1,723.82/x
3. Step 3: Cross multiply
   2,039.12x = 2,811.50 × 1,723.82
4. Step 4: Simplify right side
   2,039.12x = 4,846,511.31
5. Step 5: Solve for x
   x = 4,846,511.31/2,039.12
6. Step 6: Final answer
   x = 2,376.77