Finding the Fourth Proportional to 2,713.87, 4,071.03 and 766.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,713.87 : 4,071.03 = 766.09 : x
2. Step 2: Convert to fraction form
   2,713.87/4,071.03 = 766.09/x
3. Step 3: Cross multiply
   2,713.87x = 4,071.03 × 766.09
4. Step 4: Simplify right side
   2,713.87x = 3,118,775.37
5. Step 5: Solve for x
   x = 3,118,775.37/2,713.87
6. Step 6: Final answer
   x = 1,149.20