Finding the Fourth Proportional to 1,562.78, 2,150.22 and 1,352.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.78 : 2,150.22 = 1,352.28 : x
2. Step 2: Convert to fraction form
   1,562.78/2,150.22 = 1,352.28/x
3. Step 3: Cross multiply
   1,562.78x = 2,150.22 × 1,352.28
4. Step 4: Simplify right side
   1,562.78x = 2,907,699.50
5. Step 5: Solve for x
   x = 2,907,699.50/1,562.78
6. Step 6: Final answer
   x = 1,860.60