Finding the Fourth Proportional to 2,443.84, 3,665.35 and 688.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.84 : 3,665.35 = 688.96 : x
2. Step 2: Convert to fraction form
   2,443.84/3,665.35 = 688.96/x
3. Step 3: Cross multiply
   2,443.84x = 3,665.35 × 688.96
4. Step 4: Simplify right side
   2,443.84x = 2,525,279.54
5. Step 5: Solve for x
   x = 2,525,279.54/2,443.84
6. Step 6: Final answer
   x = 1,033.32