Finding the Fourth Proportional to 2,738.59, 4,107.43 and 764.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.59 : 4,107.43 = 764.35 : x
2. Step 2: Convert to fraction form
   2,738.59/4,107.43 = 764.35/x
3. Step 3: Cross multiply
   2,738.59x = 4,107.43 × 764.35
4. Step 4: Simplify right side
   2,738.59x = 3,139,514.12
5. Step 5: Solve for x
   x = 3,139,514.12/2,738.59
6. Step 6: Final answer
   x = 1,146.40