Finding the Fourth Proportional to 2,625.86, 3,621.48 and 1,577.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,625.86 : 3,621.48 = 1,577.72 : x
2. Step 2: Convert to fraction form
   2,625.86/3,621.48 = 1,577.72/x
3. Step 3: Cross multiply
   2,625.86x = 3,621.48 × 1,577.72
4. Step 4: Simplify right side
   2,625.86x = 5,713,681.43
5. Step 5: Solve for x
   x = 5,713,681.43/2,625.86
6. Step 6: Final answer
   x = 2,175.93