Finding the Fourth Proportional to 2,605.34, 3,593.91 and 1,556.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.34 : 3,593.91 = 1,556.78 : x
2. Step 2: Convert to fraction form
   2,605.34/3,593.91 = 1,556.78/x
3. Step 3: Cross multiply
   2,605.34x = 3,593.91 × 1,556.78
4. Step 4: Simplify right side
   2,605.34x = 5,594,927.21
5. Step 5: Solve for x
   x = 5,594,927.21/2,605.34
6. Step 6: Final answer
   x = 2,147.48