Finding the Fourth Proportional to 1,445.82, 1,995.33 and 807.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.82 : 1,995.33 = 807.81 : x
2. Step 2: Convert to fraction form
   1,445.82/1,995.33 = 807.81/x
3. Step 3: Cross multiply
   1,445.82x = 1,995.33 × 807.81
4. Step 4: Simplify right side
   1,445.82x = 1,611,847.53
5. Step 5: Solve for x
   x = 1,611,847.53/1,445.82
6. Step 6: Final answer
   x = 1,114.83