Finding the Fourth Proportional to 2,714.30, 4,071.72 and 766.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,714.30 : 4,071.72 = 766.52 : x
2. Step 2: Convert to fraction form
   2,714.30/4,071.72 = 766.52/x
3. Step 3: Cross multiply
   2,714.30x = 4,071.72 × 766.52
4. Step 4: Simplify right side
   2,714.30x = 3,121,054.81
5. Step 5: Solve for x
   x = 3,121,054.81/2,714.30
6. Step 6: Final answer
   x = 1,149.86