Finding the Fourth Proportional to 2,900.56, 4,002.78 and 1,574.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900.56 : 4,002.78 = 1,574.27 : x
2. Step 2: Convert to fraction form
   2,900.56/4,002.78 = 1,574.27/x
3. Step 3: Cross multiply
   2,900.56x = 4,002.78 × 1,574.27
4. Step 4: Simplify right side
   2,900.56x = 6,301,436.96
5. Step 5: Solve for x
   x = 6,301,436.96/2,900.56
6. Step 6: Final answer
   x = 2,172.49