Finding the Fourth Proportional to 1,783.23, 2,458.56 and 1,379.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.23 : 2,458.56 = 1,379.85 : x
2. Step 2: Convert to fraction form
   1,783.23/2,458.56 = 1,379.85/x
3. Step 3: Cross multiply
   1,783.23x = 2,458.56 × 1,379.85
4. Step 4: Simplify right side
   1,783.23x = 3,392,444.02
5. Step 5: Solve for x
   x = 3,392,444.02/1,783.23
6. Step 6: Final answer
   x = 1,902.42