Finding the Fourth Proportional to 2,242.47, 3,094.57 and 1,247.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,242.47 : 3,094.57 = 1,247.72 : x
2. Step 2: Convert to fraction form
   2,242.47/3,094.57 = 1,247.72/x
3. Step 3: Cross multiply
   2,242.47x = 3,094.57 × 1,247.72
4. Step 4: Simplify right side
   2,242.47x = 3,861,156.88
5. Step 5: Solve for x
   x = 3,861,156.88/2,242.47
6. Step 6: Final answer
   x = 1,721.83