Finding the Fourth Proportional to 1,806.86, 2,493.56 and 1,020.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.86 : 2,493.56 = 1,020.96 : x
2. Step 2: Convert to fraction form
   1,806.86/2,493.56 = 1,020.96/x
3. Step 3: Cross multiply
   1,806.86x = 2,493.56 × 1,020.96
4. Step 4: Simplify right side
   1,806.86x = 2,545,827.57
5. Step 5: Solve for x
   x = 2,545,827.57/1,806.86
6. Step 6: Final answer
   x = 1,408.98