Finding the Fourth Proportional to 2,443.87, 3,657.27 and 1,999.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.87 : 3,657.27 = 1,999.99 : x
2. Step 2: Convert to fraction form
   2,443.87/3,657.27 = 1,999.99/x
3. Step 3: Cross multiply
   2,443.87x = 3,657.27 × 1,999.99
4. Step 4: Simplify right side
   2,443.87x = 7,314,503.43
5. Step 5: Solve for x
   x = 7,314,503.43/2,443.87
6. Step 6: Final answer
   x = 2,993.00