Finding the Fourth Proportional to 1,517.28, 2,093.34 and 986.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.28 : 2,093.34 = 986.10 : x
2. Step 2: Convert to fraction form
   1,517.28/2,093.34 = 986.10/x
3. Step 3: Cross multiply
   1,517.28x = 2,093.34 × 986.10
4. Step 4: Simplify right side
   1,517.28x = 2,064,242.57
5. Step 5: Solve for x
   x = 2,064,242.57/1,517.28
6. Step 6: Final answer
   x = 1,360.49