Finding the Fourth Proportional to 3,992.52, 5,509.29 and 2,199.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.52 : 5,509.29 = 2,199.98 : x
2. Step 2: Convert to fraction form
   3,992.52/5,509.29 = 2,199.98/x
3. Step 3: Cross multiply
   3,992.52x = 5,509.29 × 2,199.98
4. Step 4: Simplify right side
   3,992.52x = 12,120,300.27
5. Step 5: Solve for x
   x = 12,120,300.27/3,992.52
6. Step 6: Final answer
   x = 3,035.75