Finding the Fourth Proportional to 2,019.30, 3,037.05 and 1,808.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.30 : 3,037.05 = 1,808.70 : x
2. Step 2: Convert to fraction form
   2,019.30/3,037.05 = 1,808.70/x
3. Step 3: Cross multiply
   2,019.30x = 3,037.05 × 1,808.70
4. Step 4: Simplify right side
   2,019.30x = 5,493,112.34
5. Step 5: Solve for x
   x = 5,493,112.34/2,019.30
6. Step 6: Final answer
   x = 2,720.31