Finding the Fourth Proportional to 1,453.82, 2,006.09 and 856.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.82 : 2,006.09 = 856.15 : x
2. Step 2: Convert to fraction form
   1,453.82/2,006.09 = 856.15/x
3. Step 3: Cross multiply
   1,453.82x = 2,006.09 × 856.15
4. Step 4: Simplify right side
   1,453.82x = 1,717,499.64
5. Step 5: Solve for x
   x = 1,717,499.64/1,453.82
6. Step 6: Final answer
   x = 1,181.37