Finding the Fourth Proportional to 2,039.24, 2,813.98 and 1,199.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.24 : 2,813.98 = 1,199.98 : x
2. Step 2: Convert to fraction form
   2,039.24/2,813.98 = 1,199.98/x
3. Step 3: Cross multiply
   2,039.24x = 2,813.98 × 1,199.98
4. Step 4: Simplify right side
   2,039.24x = 3,376,719.72
5. Step 5: Solve for x
   x = 3,376,719.72/2,039.24
6. Step 6: Final answer
   x = 1,655.87