Finding the Fourth Proportional to 2,063.30, 3,095.34 and 764.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.30 : 3,095.34 = 764.78 : x
2. Step 2: Convert to fraction form
   2,063.30/3,095.34 = 764.78/x
3. Step 3: Cross multiply
   2,063.30x = 3,095.34 × 764.78
4. Step 4: Simplify right side
   2,063.30x = 2,367,254.13
5. Step 5: Solve for x
   x = 2,367,254.13/2,063.30
6. Step 6: Final answer
   x = 1,147.31