Finding the Fourth Proportional to 1,131.87, 1,697.82 and 744.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.87 : 1,697.82 = 744.35 : x
2. Step 2: Convert to fraction form
   1,131.87/1,697.82 = 744.35/x
3. Step 3: Cross multiply
   1,131.87x = 1,697.82 × 744.35
4. Step 4: Simplify right side
   1,131.87x = 1,263,763.83
5. Step 5: Solve for x
   x = 1,263,763.83/1,131.87
6. Step 6: Final answer
   x = 1,116.53