Finding the Fourth Proportional to 1,686.42, 2,326.73 and 1,162.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686.42 : 2,326.73 = 1,162.76 : x
2. Step 2: Convert to fraction form
   1,686.42/2,326.73 = 1,162.76/x
3. Step 3: Cross multiply
   1,686.42x = 2,326.73 × 1,162.76
4. Step 4: Simplify right side
   1,686.42x = 2,705,411.13
5. Step 5: Solve for x
   x = 2,705,411.13/1,686.42
6. Step 6: Final answer
   x = 1,604.23