Finding the Fourth Proportional to 2,900.27, 4,351.08 and 1,257.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900.27 : 4,351.08 = 1,257.29 : x
2. Step 2: Convert to fraction form
   2,900.27/4,351.08 = 1,257.29/x
3. Step 3: Cross multiply
   2,900.27x = 4,351.08 × 1,257.29
4. Step 4: Simplify right side
   2,900.27x = 5,470,569.37
5. Step 5: Solve for x
   x = 5,470,569.37/2,900.27
6. Step 6: Final answer
   x = 1,886.23