Finding the Fourth Proportional to 2,322.51, 3,205.91 and 1,580.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,322.51 : 3,205.91 = 1,580.31 : x
2. Step 2: Convert to fraction form
   2,322.51/3,205.91 = 1,580.31/x
3. Step 3: Cross multiply
   2,322.51x = 3,205.91 × 1,580.31
4. Step 4: Simplify right side
   2,322.51x = 5,066,331.63
5. Step 5: Solve for x
   x = 5,066,331.63/2,322.51
6. Step 6: Final answer
   x = 2,181.40