Finding the Fourth Proportional to 1,732.25, 2,390.56 and 986.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,732.25 : 2,390.56 = 986.09 : x
2. Step 2: Convert to fraction form
   1,732.25/2,390.56 = 986.09/x
3. Step 3: Cross multiply
   1,732.25x = 2,390.56 × 986.09
4. Step 4: Simplify right side
   1,732.25x = 2,357,311.89
5. Step 5: Solve for x
   x = 2,357,311.89/1,732.25
6. Step 6: Final answer
   x = 1,360.84