Finding the Fourth Proportional to 2,187.90, 3,023.24 and 1,663.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.90 : 3,023.24 = 1,663.02 : x
2. Step 2: Convert to fraction form
   2,187.90/3,023.24 = 1,663.02/x
3. Step 3: Cross multiply
   2,187.90x = 3,023.24 × 1,663.02
4. Step 4: Simplify right side
   2,187.90x = 5,027,700.27
5. Step 5: Solve for x
   x = 5,027,700.27/2,187.90
6. Step 6: Final answer
   x = 2,297.96