Finding the Fourth Proportional to 1,830.82, 2,744.90 and 856.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,830.82 : 2,744.90 = 856.38 : x
2. Step 2: Convert to fraction form
   1,830.82/2,744.90 = 856.38/x
3. Step 3: Cross multiply
   1,830.82x = 2,744.90 × 856.38
4. Step 4: Simplify right side
   1,830.82x = 2,350,677.46
5. Step 5: Solve for x
   x = 2,350,677.46/1,830.82
6. Step 6: Final answer
   x = 1,283.95