Finding the Fourth Proportional to 2,458.76, 3,392.89 and 1,574.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458.76 : 3,392.89 = 1,574.44 : x
2. Step 2: Convert to fraction form
   2,458.76/3,392.89 = 1,574.44/x
3. Step 3: Cross multiply
   2,458.76x = 3,392.89 × 1,574.44
4. Step 4: Simplify right side
   2,458.76x = 5,341,889.31
5. Step 5: Solve for x
   x = 5,341,889.31/2,458.76
6. Step 6: Final answer
   x = 2,172.60