Finding the Fourth Proportional to 1,548.17, 2,322.86 and 681.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.17 : 2,322.86 = 681.88 : x
2. Step 2: Convert to fraction form
   1,548.17/2,322.86 = 681.88/x
3. Step 3: Cross multiply
   1,548.17x = 2,322.86 × 681.88
4. Step 4: Simplify right side
   1,548.17x = 1,583,911.78
5. Step 5: Solve for x
   x = 1,583,911.78/1,548.17
6. Step 6: Final answer
   x = 1,023.09