Finding the Fourth Proportional to 1,131.74, 1,697.76 and 1,063.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.74 : 1,697.76 = 1,063.39 : x
2. Step 2: Convert to fraction form
   1,131.74/1,697.76 = 1,063.39/x
3. Step 3: Cross multiply
   1,131.74x = 1,697.76 × 1,063.39
4. Step 4: Simplify right side
   1,131.74x = 1,805,379.93
5. Step 5: Solve for x
   x = 1,805,379.93/1,131.74
6. Step 6: Final answer
   x = 1,595.23