Finding the Fourth Proportional to 1,732.84, 2,391.15 and 986.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,732.84 : 2,391.15 = 986.74 : x
2. Step 2: Convert to fraction form
   1,732.84/2,391.15 = 986.74/x
3. Step 3: Cross multiply
   1,732.84x = 2,391.15 × 986.74
4. Step 4: Simplify right side
   1,732.84x = 2,359,443.35
5. Step 5: Solve for x
   x = 2,359,443.35/1,732.84
6. Step 6: Final answer
   x = 1,361.60