Finding the Fourth Proportional to 2,290.89, 3,157.74 and 1,544.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.89 : 3,157.74 = 1,544.61 : x
2. Step 2: Convert to fraction form
   2,290.89/3,157.74 = 1,544.61/x
3. Step 3: Cross multiply
   2,290.89x = 3,157.74 × 1,544.61
4. Step 4: Simplify right side
   2,290.89x = 4,877,476.78
5. Step 5: Solve for x
   x = 4,877,476.78/2,290.89
6. Step 6: Final answer
   x = 2,129.08