Finding the Fourth Proportional to 2,443.34, 3,664.60 and 688.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.34 : 3,664.60 = 688.46 : x
2. Step 2: Convert to fraction form
   2,443.34/3,664.60 = 688.46/x
3. Step 3: Cross multiply
   2,443.34x = 3,664.60 × 688.46
4. Step 4: Simplify right side
   2,443.34x = 2,522,930.52
5. Step 5: Solve for x
   x = 2,522,930.52/2,443.34
6. Step 6: Final answer
   x = 1,032.57