Finding the Fourth Proportional to 2,019.68, 2,780.70 and 1,723.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.68 : 2,780.70 = 1,723.76 : x
2. Step 2: Convert to fraction form
   2,019.68/2,780.70 = 1,723.76/x
3. Step 3: Cross multiply
   2,019.68x = 2,780.70 × 1,723.76
4. Step 4: Simplify right side
   2,019.68x = 4,793,245.53
5. Step 5: Solve for x
   x = 4,793,245.53/2,019.68
6. Step 6: Final answer
   x = 2,373.28