Finding the Fourth Proportional to 5,114.28, 7,669.00 and 1,781.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,114.28 : 7,669.00 = 1,781.37 : x
2. Step 2: Convert to fraction form
   5,114.28/7,669.00 = 1,781.37/x
3. Step 3: Cross multiply
   5,114.28x = 7,669.00 × 1,781.37
4. Step 4: Simplify right side
   5,114.28x = 13,661,286.38
5. Step 5: Solve for x
   x = 13,661,286.38/5,114.28
6. Step 6: Final answer
   x = 2,671.20