Finding the Fourth Proportional to 2,505.80, 3,457.98 and 1,574.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.80 : 3,457.98 = 1,574.12 : x
2. Step 2: Convert to fraction form
   2,505.80/3,457.98 = 1,574.12/x
3. Step 3: Cross multiply
   2,505.80x = 3,457.98 × 1,574.12
4. Step 4: Simplify right side
   2,505.80x = 5,443,275.48
5. Step 5: Solve for x
   x = 5,443,275.48/2,505.80
6. Step 6: Final answer
   x = 2,172.27