Finding the Fourth Proportional to 2,505.62, 3,457.89 and 1,574.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.62 : 3,457.89 = 1,574.42 : x
2. Step 2: Convert to fraction form
   2,505.62/3,457.89 = 1,574.42/x
3. Step 3: Cross multiply
   2,505.62x = 3,457.89 × 1,574.42
4. Step 4: Simplify right side
   2,505.62x = 5,444,171.17
5. Step 5: Solve for x
   x = 5,444,171.17/2,505.62
6. Step 6: Final answer
   x = 2,172.78