Finding the Fourth Proportional to 1,732.87, 2,390.81 and 986.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,732.87 : 2,390.81 = 986.83 : x
2. Step 2: Convert to fraction form
   1,732.87/2,390.81 = 986.83/x
3. Step 3: Cross multiply
   1,732.87x = 2,390.81 × 986.83
4. Step 4: Simplify right side
   1,732.87x = 2,359,323.03
5. Step 5: Solve for x
   x = 2,359,323.03/1,732.87
6. Step 6: Final answer
   x = 1,361.51