Finding the Fourth Proportional to 1,808.63, 2,713.34 and 769.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,808.63 : 2,713.34 = 769.52 : x
2. Step 2: Convert to fraction form
   1,808.63/2,713.34 = 769.52/x
3. Step 3: Cross multiply
   1,808.63x = 2,713.34 × 769.52
4. Step 4: Simplify right side
   1,808.63x = 2,087,978.10
5. Step 5: Solve for x
   x = 2,087,978.10/1,808.63
6. Step 6: Final answer
   x = 1,154.45