Finding the Fourth Proportional to 2,112.35, 3,162.11 and 1,698.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.35 : 3,162.11 = 1,698.03 : x
2. Step 2: Convert to fraction form
   2,112.35/3,162.11 = 1,698.03/x
3. Step 3: Cross multiply
   2,112.35x = 3,162.11 × 1,698.03
4. Step 4: Simplify right side
   2,112.35x = 5,369,349.15
5. Step 5: Solve for x
   x = 5,369,349.15/2,112.35
6. Step 6: Final answer
   x = 2,541.89