Finding the Fourth Proportional to 2,319.98, 3,199.71 and 2,039.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.98 : 3,199.71 = 2,039.62 : x
2. Step 2: Convert to fraction form
   2,319.98/3,199.71 = 2,039.62/x
3. Step 3: Cross multiply
   2,319.98x = 3,199.71 × 2,039.62
4. Step 4: Simplify right side
   2,319.98x = 6,526,192.51
5. Step 5: Solve for x
   x = 6,526,192.51/2,319.98
6. Step 6: Final answer
   x = 2,813.04