Finding the Fourth Proportional to 2,100.06, 3,143.61 and 1,236.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.06 : 3,143.61 = 1,236.06 : x
2. Step 2: Convert to fraction form
   2,100.06/3,143.61 = 1,236.06/x
3. Step 3: Cross multiply
   2,100.06x = 3,143.61 × 1,236.06
4. Step 4: Simplify right side
   2,100.06x = 3,885,690.58
5. Step 5: Solve for x
   x = 3,885,690.58/2,100.06
6. Step 6: Final answer
   x = 1,850.28