Finding the Fourth Proportional to 2,401.65, 3,602.49 and 1,228.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.65 : 3,602.49 = 1,228.32 : x
2. Step 2: Convert to fraction form
   2,401.65/3,602.49 = 1,228.32/x
3. Step 3: Cross multiply
   2,401.65x = 3,602.49 × 1,228.32
4. Step 4: Simplify right side
   2,401.65x = 4,425,010.52
5. Step 5: Solve for x
   x = 4,425,010.52/2,401.65
6. Step 6: Final answer
   x = 1,842.49