Finding the Fourth Proportional to 2,428.89, 3,641.06 and 889.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428.89 : 3,641.06 = 889.53 : x
2. Step 2: Convert to fraction form
   2,428.89/3,641.06 = 889.53/x
3. Step 3: Cross multiply
   2,428.89x = 3,641.06 × 889.53
4. Step 4: Simplify right side
   2,428.89x = 3,238,827.65
5. Step 5: Solve for x
   x = 3,238,827.65/2,428.89
6. Step 6: Final answer
   x = 1,333.46