Finding the Fourth Proportional to 2,379.51, 3,569.00 and 648.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.51 : 3,569.00 = 648.27 : x
2. Step 2: Convert to fraction form
   2,379.51/3,569.00 = 648.27/x
3. Step 3: Cross multiply
   2,379.51x = 3,569.00 × 648.27
4. Step 4: Simplify right side
   2,379.51x = 2,313,672.39
5. Step 5: Solve for x
   x = 2,313,672.39/2,379.51
6. Step 6: Final answer
   x = 972.33