Finding the Fourth Proportional to 2,356.72, 3,252.42 and 1,308.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.72 : 3,252.42 = 1,308.79 : x
2. Step 2: Convert to fraction form
   2,356.72/3,252.42 = 1,308.79/x
3. Step 3: Cross multiply
   2,356.72x = 3,252.42 × 1,308.79
4. Step 4: Simplify right side
   2,356.72x = 4,256,734.77
5. Step 5: Solve for x
   x = 4,256,734.77/2,356.72
6. Step 6: Final answer
   x = 1,806.21