Finding the Fourth Proportional to 1,519.78, 2,097.42 and 856.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.78 : 2,097.42 = 856.76 : x
2. Step 2: Convert to fraction form
   1,519.78/2,097.42 = 856.76/x
3. Step 3: Cross multiply
   1,519.78x = 2,097.42 × 856.76
4. Step 4: Simplify right side
   1,519.78x = 1,796,994.92
5. Step 5: Solve for x
   x = 1,796,994.92/1,519.78
6. Step 6: Final answer
   x = 1,182.41