Finding the Fourth Proportional to 1,806.22, 2,492.82 and 1,020.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.22 : 2,492.82 = 1,020.43 : x
2. Step 2: Convert to fraction form
   1,806.22/2,492.82 = 1,020.43/x
3. Step 3: Cross multiply
   1,806.22x = 2,492.82 × 1,020.43
4. Step 4: Simplify right side
   1,806.22x = 2,543,748.31
5. Step 5: Solve for x
   x = 2,543,748.31/1,806.22
6. Step 6: Final answer
   x = 1,408.33