Finding the Fourth Proportional to 1,806.35, 2,492.69 and 1,020.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.35 : 2,492.69 = 1,020.38 : x
2. Step 2: Convert to fraction form
   1,806.35/2,492.69 = 1,020.38/x
3. Step 3: Cross multiply
   1,806.35x = 2,492.69 × 1,020.38
4. Step 4: Simplify right side
   1,806.35x = 2,543,473.46
5. Step 5: Solve for x
   x = 2,543,473.46/1,806.35
6. Step 6: Final answer
   x = 1,408.08