Finding the Fourth Proportional to 2,019.88, 3,030.40 and 1,671.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.88 : 3,030.40 = 1,671.60 : x
2. Step 2: Convert to fraction form
   2,019.88/3,030.40 = 1,671.60/x
3. Step 3: Cross multiply
   2,019.88x = 3,030.40 × 1,671.60
4. Step 4: Simplify right side
   2,019.88x = 5,065,616.64
5. Step 5: Solve for x
   x = 5,065,616.64/2,019.88
6. Step 6: Final answer
   x = 2,507.88