Finding the Fourth Proportional to 1,111.18, 1,534.05 and 738.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.18 : 1,534.05 = 738.67 : x
2. Step 2: Convert to fraction form
   1,111.18/1,534.05 = 738.67/x
3. Step 3: Cross multiply
   1,111.18x = 1,534.05 × 738.67
4. Step 4: Simplify right side
   1,111.18x = 1,133,152.88
5. Step 5: Solve for x
   x = 1,133,152.88/1,111.18
6. Step 6: Final answer
   x = 1,019.78