Finding the Fourth Proportional to 3,985.05, 5,499.16 and 2,192.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.05 : 5,499.16 = 2,192.51 : x
2. Step 2: Convert to fraction form
   3,985.05/5,499.16 = 2,192.51/x
3. Step 3: Cross multiply
   3,985.05x = 5,499.16 × 2,192.51
4. Step 4: Simplify right side
   3,985.05x = 12,056,924.83
5. Step 5: Solve for x
   x = 12,056,924.83/3,985.05
6. Step 6: Final answer
   x = 3,025.54