Finding the Fourth Proportional to 2,714.18, 4,071.21 and 766.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,714.18 : 4,071.21 = 766.37 : x
2. Step 2: Convert to fraction form
   2,714.18/4,071.21 = 766.37/x
3. Step 3: Cross multiply
   2,714.18x = 4,071.21 × 766.37
4. Step 4: Simplify right side
   2,714.18x = 3,120,053.21
5. Step 5: Solve for x
   x = 3,120,053.21/2,714.18
6. Step 6: Final answer
   x = 1,149.54