Finding the Fourth Proportional to 2,572.48, 3,861.42 and 1,419.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.48 : 3,861.42 = 1,419.04 : x
2. Step 2: Convert to fraction form
   2,572.48/3,861.42 = 1,419.04/x
3. Step 3: Cross multiply
   2,572.48x = 3,861.42 × 1,419.04
4. Step 4: Simplify right side
   2,572.48x = 5,479,509.44
5. Step 5: Solve for x
   x = 5,479,509.44/2,572.48
6. Step 6: Final answer
   x = 2,130.05