Finding the Fourth Proportional to 2,709.34, 4,062.57 and 1,247.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709.34 : 4,062.57 = 1,247.22 : x
2. Step 2: Convert to fraction form
   2,709.34/4,062.57 = 1,247.22/x
3. Step 3: Cross multiply
   2,709.34x = 4,062.57 × 1,247.22
4. Step 4: Simplify right side
   2,709.34x = 5,066,918.56
5. Step 5: Solve for x
   x = 5,066,918.56/2,709.34
6. Step 6: Final answer
   x = 1,870.17