Finding the Fourth Proportional to 1,445.82, 1,995.24 and 782.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.82 : 1,995.24 = 782.69 : x
2. Step 2: Convert to fraction form
   1,445.82/1,995.24 = 782.69/x
3. Step 3: Cross multiply
   1,445.82x = 1,995.24 × 782.69
4. Step 4: Simplify right side
   1,445.82x = 1,561,647.35
5. Step 5: Solve for x
   x = 1,561,647.35/1,445.82
6. Step 6: Final answer
   x = 1,080.11