Finding the Fourth Proportional to 2,019.30, 2,785.12 and 1,346.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.30 : 2,785.12 = 1,346.79 : x
2. Step 2: Convert to fraction form
   2,019.30/2,785.12 = 1,346.79/x
3. Step 3: Cross multiply
   2,019.30x = 2,785.12 × 1,346.79
4. Step 4: Simplify right side
   2,019.30x = 3,750,978.84
5. Step 5: Solve for x
   x = 3,750,978.84/2,019.30
6. Step 6: Final answer
   x = 1,857.57