Finding the Fourth Proportional to 1,685.30, 2,325.03 and 986.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685.30 : 2,325.03 = 986.27 : x
2. Step 2: Convert to fraction form
   1,685.30/2,325.03 = 986.27/x
3. Step 3: Cross multiply
   1,685.30x = 2,325.03 × 986.27
4. Step 4: Simplify right side
   1,685.30x = 2,293,095.71
5. Step 5: Solve for x
   x = 2,293,095.71/1,685.30
6. Step 6: Final answer
   x = 1,360.65