Finding the Fourth Proportional to 2,190.16, 3,024.84 and 1,698.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190.16 : 3,024.84 = 1,698.72 : x
2. Step 2: Convert to fraction form
   2,190.16/3,024.84 = 1,698.72/x
3. Step 3: Cross multiply
   2,190.16x = 3,024.84 × 1,698.72
4. Step 4: Simplify right side
   2,190.16x = 5,138,356.20
5. Step 5: Solve for x
   x = 5,138,356.20/2,190.16
6. Step 6: Final answer
   x = 2,346.11