Finding the Fourth Proportional to 2,521.22, 3,477.50 and 1,577.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.22 : 3,477.50 = 1,577.52 : x
2. Step 2: Convert to fraction form
   2,521.22/3,477.50 = 1,577.52/x
3. Step 3: Cross multiply
   2,521.22x = 3,477.50 × 1,577.52
4. Step 4: Simplify right side
   2,521.22x = 5,485,825.80
5. Step 5: Solve for x
   x = 5,485,825.80/2,521.22
6. Step 6: Final answer
   x = 2,175.86