Finding the Fourth Proportional to 1,806.80, 2,493.15 and 1,010.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.80 : 2,493.15 = 1,010.18 : x
2. Step 2: Convert to fraction form
   1,806.80/2,493.15 = 1,010.18/x
3. Step 3: Cross multiply
   1,806.80x = 2,493.15 × 1,010.18
4. Step 4: Simplify right side
   1,806.80x = 2,518,517.80
5. Step 5: Solve for x
   x = 2,518,517.80/1,806.80
6. Step 6: Final answer
   x = 1,393.91