Finding the Fourth Proportional to 2,605.28, 3,595.18 and 1,556.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.28 : 3,595.18 = 1,556.72 : x
2. Step 2: Convert to fraction form
   2,605.28/3,595.18 = 1,556.72/x
3. Step 3: Cross multiply
   2,605.28x = 3,595.18 × 1,556.72
4. Step 4: Simplify right side
   2,605.28x = 5,596,688.61
5. Step 5: Solve for x
   x = 5,596,688.61/2,605.28
6. Step 6: Final answer
   x = 2,148.21