Finding the Fourth Proportional to 1,777.45, 2,667.30 and 681.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,777.45 : 2,667.30 = 681.94 : x
2. Step 2: Convert to fraction form
   1,777.45/2,667.30 = 681.94/x
3. Step 3: Cross multiply
   1,777.45x = 2,667.30 × 681.94
4. Step 4: Simplify right side
   1,777.45x = 1,818,938.56
5. Step 5: Solve for x
   x = 1,818,938.56/1,777.45
6. Step 6: Final answer
   x = 1,023.34