Finding the Fourth Proportional to 2,016.40, 3,030.51 and 1,671.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.40 : 3,030.51 = 1,671.94 : x
2. Step 2: Convert to fraction form
   2,016.40/3,030.51 = 1,671.94/x
3. Step 3: Cross multiply
   2,016.40x = 3,030.51 × 1,671.94
4. Step 4: Simplify right side
   2,016.40x = 5,066,830.89
5. Step 5: Solve for x
   x = 5,066,830.89/2,016.40
6. Step 6: Final answer
   x = 2,512.81