Finding the Fourth Proportional to 2,544.89, 3,818.34 and 901.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.89 : 3,818.34 = 901.61 : x
2. Step 2: Convert to fraction form
   2,544.89/3,818.34 = 901.61/x
3. Step 3: Cross multiply
   2,544.89x = 3,818.34 × 901.61
4. Step 4: Simplify right side
   2,544.89x = 3,442,653.53
5. Step 5: Solve for x
   x = 3,442,653.53/2,544.89
6. Step 6: Final answer
   x = 1,352.77