Finding the Fourth Proportional to 2,186.06, 3,017.12 and 1,242.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.06 : 3,017.12 = 1,242.27 : x
2. Step 2: Convert to fraction form
   2,186.06/3,017.12 = 1,242.27/x
3. Step 3: Cross multiply
   2,186.06x = 3,017.12 × 1,242.27
4. Step 4: Simplify right side
   2,186.06x = 3,748,071.45
5. Step 5: Solve for x
   x = 3,748,071.45/2,186.06
6. Step 6: Final answer
   x = 1,714.54