Finding the Fourth Proportional to 2,290.16, 3,160.56 and 1,729.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.16 : 3,160.56 = 1,729.64 : x
2. Step 2: Convert to fraction form
   2,290.16/3,160.56 = 1,729.64/x
3. Step 3: Cross multiply
   2,290.16x = 3,160.56 × 1,729.64
4. Step 4: Simplify right side
   2,290.16x = 5,466,631.00
5. Step 5: Solve for x
   x = 5,466,631.00/2,290.16
6. Step 6: Final answer
   x = 2,387.01