Finding the Fourth Proportional to 1,291.47, 1,782.12 and 760.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291.47 : 1,782.12 = 760.27 : x
2. Step 2: Convert to fraction form
   1,291.47/1,782.12 = 760.27/x
3. Step 3: Cross multiply
   1,291.47x = 1,782.12 × 760.27
4. Step 4: Simplify right side
   1,291.47x = 1,354,892.37
5. Step 5: Solve for x
   x = 1,354,892.37/1,291.47
6. Step 6: Final answer
   x = 1,049.11