Finding the Fourth Proportional to 1,105.32, 1,657.98 and 375.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.32 : 1,657.98 = 375.42 : x
2. Step 2: Convert to fraction form
   1,105.32/1,657.98 = 375.42/x
3. Step 3: Cross multiply
   1,105.32x = 1,657.98 × 375.42
4. Step 4: Simplify right side
   1,105.32x = 622,438.85
5. Step 5: Solve for x
   x = 622,438.85/1,105.32
6. Step 6: Final answer
   x = 563.13