Finding the Fourth Proportional to 1,356.68, 1,872.42 and 1,093.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.68 : 1,872.42 = 1,093.88 : x
2. Step 2: Convert to fraction form
   1,356.68/1,872.42 = 1,093.88/x
3. Step 3: Cross multiply
   1,356.68x = 1,872.42 × 1,093.88
4. Step 4: Simplify right side
   1,356.68x = 2,048,202.79
5. Step 5: Solve for x
   x = 2,048,202.79/1,356.68
6. Step 6: Final answer
   x = 1,509.72