Finding the Fourth Proportional to 1,445.84, 1,995.38 and 856.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.84 : 1,995.38 = 856.52 : x
2. Step 2: Convert to fraction form
   1,445.84/1,995.38 = 856.52/x
3. Step 3: Cross multiply
   1,445.84x = 1,995.38 × 856.52
4. Step 4: Simplify right side
   1,445.84x = 1,709,082.88
5. Step 5: Solve for x
   x = 1,709,082.88/1,445.84
6. Step 6: Final answer
   x = 1,182.07