Finding the Fourth Proportional to 2,428.98, 3,643.52 and 697.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428.98 : 3,643.52 = 697.61 : x
2. Step 2: Convert to fraction form
   2,428.98/3,643.52 = 697.61/x
3. Step 3: Cross multiply
   2,428.98x = 3,643.52 × 697.61
4. Step 4: Simplify right side
   2,428.98x = 2,541,734.28
5. Step 5: Solve for x
   x = 2,541,734.28/2,428.98
6. Step 6: Final answer
   x = 1,046.42