Finding the Fourth Proportional to 2,609.78, 3,601.95 and 1,562.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.78 : 3,601.95 = 1,562.45 : x
2. Step 2: Convert to fraction form
   2,609.78/3,601.95 = 1,562.45/x
3. Step 3: Cross multiply
   2,609.78x = 3,601.95 × 1,562.45
4. Step 4: Simplify right side
   2,609.78x = 5,627,866.78
5. Step 5: Solve for x
   x = 5,627,866.78/2,609.78
6. Step 6: Final answer
   x = 2,156.45