Finding the Fourth Proportional to 1,510.09, 2,084.33 and 986.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.09 : 2,084.33 = 986.11 : x
2. Step 2: Convert to fraction form
   1,510.09/2,084.33 = 986.11/x
3. Step 3: Cross multiply
   1,510.09x = 2,084.33 × 986.11
4. Step 4: Simplify right side
   1,510.09x = 2,055,363.30
5. Step 5: Solve for x
   x = 2,055,363.30/1,510.09
6. Step 6: Final answer
   x = 1,361.09