Finding the Fourth Proportional to 1,433.29, 1,978.41 and 910.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.29 : 1,978.41 = 910.03 : x
2. Step 2: Convert to fraction form
   1,433.29/1,978.41 = 910.03/x
3. Step 3: Cross multiply
   1,433.29x = 1,978.41 × 910.03
4. Step 4: Simplify right side
   1,433.29x = 1,800,412.45
5. Step 5: Solve for x
   x = 1,800,412.45/1,433.29
6. Step 6: Final answer
   x = 1,256.14