Finding the Fourth Proportional to 2,142.62, 3,210 and 1,798.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.62 : 3,210 = 1,798.16 : x
2. Step 2: Convert to fraction form
   2,142.62/3,210 = 1,798.16/x
3. Step 3: Cross multiply
   2,142.62x = 3,210 × 1,798.16
4. Step 4: Simplify right side
   2,142.62x = 5,772,093.60
5. Step 5: Solve for x
   x = 5,772,093.60/2,142.62
6. Step 6: Final answer
   x = 2,693.94