Finding the Fourth Proportional to 2,900.42, 4,002.56 and 1,574.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900.42 : 4,002.56 = 1,574.12 : x
2. Step 2: Convert to fraction form
   2,900.42/4,002.56 = 1,574.12/x
3. Step 3: Cross multiply
   2,900.42x = 4,002.56 × 1,574.12
4. Step 4: Simplify right side
   2,900.42x = 6,300,509.75
5. Step 5: Solve for x
   x = 6,300,509.75/2,900.42
6. Step 6: Final answer
   x = 2,172.27