Finding the Fourth Proportional to 2,712.52, 4,068.30 and 764.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,712.52 : 4,068.30 = 764.71 : x
2. Step 2: Convert to fraction form
   2,712.52/4,068.30 = 764.71/x
3. Step 3: Cross multiply
   2,712.52x = 4,068.30 × 764.71
4. Step 4: Simplify right side
   2,712.52x = 3,111,069.69
5. Step 5: Solve for x
   x = 3,111,069.69/2,712.52
6. Step 6: Final answer
   x = 1,146.93