Finding the Fourth Proportional to 2,185.02, 3,016.34 and 1,399.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.02 : 3,016.34 = 1,399.51 : x
2. Step 2: Convert to fraction form
   2,185.02/3,016.34 = 1,399.51/x
3. Step 3: Cross multiply
   2,185.02x = 3,016.34 × 1,399.51
4. Step 4: Simplify right side
   2,185.02x = 4,221,397.99
5. Step 5: Solve for x
   x = 4,221,397.99/2,185.02
6. Step 6: Final answer
   x = 1,931.98