Finding the Fourth Proportional to 2,577.68, 3,557.76 and 1,583.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.68 : 3,557.76 = 1,583.48 : x
2. Step 2: Convert to fraction form
   2,577.68/3,557.76 = 1,583.48/x
3. Step 3: Cross multiply
   2,577.68x = 3,557.76 × 1,583.48
4. Step 4: Simplify right side
   2,577.68x = 5,633,641.80
5. Step 5: Solve for x
   x = 5,633,641.80/2,577.68
6. Step 6: Final answer
   x = 2,185.55