Finding the Fourth Proportional to 2,386.34, 3,579.71 and 654.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.34 : 3,579.71 = 654.96 : x
2. Step 2: Convert to fraction form
   2,386.34/3,579.71 = 654.96/x
3. Step 3: Cross multiply
   2,386.34x = 3,579.71 × 654.96
4. Step 4: Simplify right side
   2,386.34x = 2,344,563.59
5. Step 5: Solve for x
   x = 2,344,563.59/2,386.34
6. Step 6: Final answer
   x = 982.50