Finding the Fourth Proportional to 1,445.77, 1,995.16 and 782.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.77 : 1,995.16 = 782.62 : x
2. Step 2: Convert to fraction form
   1,445.77/1,995.16 = 782.62/x
3. Step 3: Cross multiply
   1,445.77x = 1,995.16 × 782.62
4. Step 4: Simplify right side
   1,445.77x = 1,561,456.40
5. Step 5: Solve for x
   x = 1,561,456.40/1,445.77
6. Step 6: Final answer
   x = 1,080.02