Finding the Fourth Proportional to 1,687.01, 2,324.55 and 1,570.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,687.01 : 2,324.55 = 1,570.22 : x
2. Step 2: Convert to fraction form
   1,687.01/2,324.55 = 1,570.22/x
3. Step 3: Cross multiply
   1,687.01x = 2,324.55 × 1,570.22
4. Step 4: Simplify right side
   1,687.01x = 3,650,054.90
5. Step 5: Solve for x
   x = 3,650,054.90/1,687.01
6. Step 6: Final answer
   x = 2,163.62