Finding the Fourth Proportional to 1,444.17, 1,992.96 and 781.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,444.17 : 1,992.96 = 781.03 : x
2. Step 2: Convert to fraction form
   1,444.17/1,992.96 = 781.03/x
3. Step 3: Cross multiply
   1,444.17x = 1,992.96 × 781.03
4. Step 4: Simplify right side
   1,444.17x = 1,556,560.63
5. Step 5: Solve for x
   x = 1,556,560.63/1,444.17
6. Step 6: Final answer
   x = 1,077.82