Finding the Fourth Proportional to 2,577.15, 3,556.71 and 1,693.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.15 : 3,556.71 = 1,693.31 : x
2. Step 2: Convert to fraction form
   2,577.15/3,556.71 = 1,693.31/x
3. Step 3: Cross multiply
   2,577.15x = 3,556.71 × 1,693.31
4. Step 4: Simplify right side
   2,577.15x = 6,022,594.83
5. Step 5: Solve for x
   x = 6,022,594.83/2,577.15
6. Step 6: Final answer
   x = 2,336.92