Finding the Fourth Proportional to 2,420.06, 3,630.01 and 688.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,420.06 : 3,630.01 = 688.69 : x
2. Step 2: Convert to fraction form
   2,420.06/3,630.01 = 688.69/x
3. Step 3: Cross multiply
   2,420.06x = 3,630.01 × 688.69
4. Step 4: Simplify right side
   2,420.06x = 2,499,951.59
5. Step 5: Solve for x
   x = 2,499,951.59/2,420.06
6. Step 6: Final answer
   x = 1,033.01