Finding the Fourth Proportional to 1,685.72, 2,326.82 and 1,370.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685.72 : 2,326.82 = 1,370.73 : x
2. Step 2: Convert to fraction form
   1,685.72/2,326.82 = 1,370.73/x
3. Step 3: Cross multiply
   1,685.72x = 2,326.82 × 1,370.73
4. Step 4: Simplify right side
   1,685.72x = 3,189,441.98
5. Step 5: Solve for x
   x = 3,189,441.98/1,685.72
6. Step 6: Final answer
   x = 1,892.04