Finding the Fourth Proportional to 2,577.72, 3,558.51 and 1,583.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.72 : 3,558.51 = 1,583.22 : x
2. Step 2: Convert to fraction form
   2,577.72/3,558.51 = 1,583.22/x
3. Step 3: Cross multiply
   2,577.72x = 3,558.51 × 1,583.22
4. Step 4: Simplify right side
   2,577.72x = 5,633,904.20
5. Step 5: Solve for x
   x = 5,633,904.20/2,577.72
6. Step 6: Final answer
   x = 2,185.62