Finding the Fourth Proportional to 1,417.52, 1,955.45 and 920.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.52 : 1,955.45 = 920.43 : x
2. Step 2: Convert to fraction form
   1,417.52/1,955.45 = 920.43/x
3. Step 3: Cross multiply
   1,417.52x = 1,955.45 × 920.43
4. Step 4: Simplify right side
   1,417.52x = 1,799,857.14
5. Step 5: Solve for x
   x = 1,799,857.14/1,417.52
6. Step 6: Final answer
   x = 1,269.73