Finding the Fourth Proportional to 2,287.02, 3,157.72 and 1,658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.02 : 3,157.72 = 1,658.72 : x
2. Step 2: Convert to fraction form
   2,287.02/3,157.72 = 1,658.72/x
3. Step 3: Cross multiply
   2,287.02x = 3,157.72 × 1,658.72
4. Step 4: Simplify right side
   2,287.02x = 5,237,773.32
5. Step 5: Solve for x
   x = 5,237,773.32/2,287.02
6. Step 6: Final answer
   x = 2,290.22