Finding the Fourth Proportional to 2,900.69, 4,002.89 and 1,574.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900.69 : 4,002.89 = 1,574.36 : x
2. Step 2: Convert to fraction form
   2,900.69/4,002.89 = 1,574.36/x
3. Step 3: Cross multiply
   2,900.69x = 4,002.89 × 1,574.36
4. Step 4: Simplify right side
   2,900.69x = 6,302,001.57
5. Step 5: Solve for x
   x = 6,302,001.57/2,900.69
6. Step 6: Final answer
   x = 2,172.59