Finding the Fourth Proportional to 1,440.17, 2,162.28 and 737.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,440.17 : 2,162.28 = 737.89 : x
2. Step 2: Convert to fraction form
   1,440.17/2,162.28 = 737.89/x
3. Step 3: Cross multiply
   1,440.17x = 2,162.28 × 737.89
4. Step 4: Simplify right side
   1,440.17x = 1,595,522.15
5. Step 5: Solve for x
   x = 1,595,522.15/1,440.17
6. Step 6: Final answer
   x = 1,107.87