Finding the Fourth Proportional to 1,393.56, 1,908.47 and 1,375.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393.56 : 1,908.47 = 1,375.34 : x
2. Step 2: Convert to fraction form
   1,393.56/1,908.47 = 1,375.34/x
3. Step 3: Cross multiply
   1,393.56x = 1,908.47 × 1,375.34
4. Step 4: Simplify right side
   1,393.56x = 2,624,789.03
5. Step 5: Solve for x
   x = 2,624,789.03/1,393.56
6. Step 6: Final answer
   x = 1,883.51