Finding the Fourth Proportional to 1,350.80, 1,862.30 and 1,013.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350.80 : 1,862.30 = 1,013.27 : x
2. Step 2: Convert to fraction form
   1,350.80/1,862.30 = 1,013.27/x
3. Step 3: Cross multiply
   1,350.80x = 1,862.30 × 1,013.27
4. Step 4: Simplify right side
   1,350.80x = 1,887,003.41
5. Step 5: Solve for x
   x = 1,887,003.41/1,350.80
6. Step 6: Final answer
   x = 1,396.95