Finding the Fourth Proportional to 2,577.81, 3,557.53 and 1,570.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.81 : 3,557.53 = 1,570.22 : x
2. Step 2: Convert to fraction form
   2,577.81/3,557.53 = 1,570.22/x
3. Step 3: Cross multiply
   2,577.81x = 3,557.53 × 1,570.22
4. Step 4: Simplify right side
   2,577.81x = 5,586,104.76
5. Step 5: Solve for x
   x = 5,586,104.76/2,577.81
6. Step 6: Final answer
   x = 2,167.00