Finding the Fourth Proportional to 1,685.46, 2,326.26 and 986.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685.46 : 2,326.26 = 986.82 : x
2. Step 2: Convert to fraction form
   1,685.46/2,326.26 = 986.82/x
3. Step 3: Cross multiply
   1,685.46x = 2,326.26 × 986.82
4. Step 4: Simplify right side
   1,685.46x = 2,295,599.89
5. Step 5: Solve for x
   x = 2,295,599.89/1,685.46
6. Step 6: Final answer
   x = 1,362.00