Finding the Fourth Proportional to 1,684.01, 2,320.42 and 1,567.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,684.01 : 2,320.42 = 1,567.22 : x
2. Step 2: Convert to fraction form
   1,684.01/2,320.42 = 1,567.22/x
3. Step 3: Cross multiply
   1,684.01x = 2,320.42 × 1,567.22
4. Step 4: Simplify right side
   1,684.01x = 3,636,600.80
5. Step 5: Solve for x
   x = 3,636,600.80/1,684.01
6. Step 6: Final answer
   x = 2,159.50