Finding the Fourth Proportional to 1,519.57, 2,097.01 and 856.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.57 : 2,097.01 = 856.43 : x
2. Step 2: Convert to fraction form
   1,519.57/2,097.01 = 856.43/x
3. Step 3: Cross multiply
   1,519.57x = 2,097.01 × 856.43
4. Step 4: Simplify right side
   1,519.57x = 1,795,942.27
5. Step 5: Solve for x
   x = 1,795,942.27/1,519.57
6. Step 6: Final answer
   x = 1,181.88