Finding the Fourth Proportional to 1,933.11, 2,666.75 and 1,146.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,933.11 : 2,666.75 = 1,146.78 : x
2. Step 2: Convert to fraction form
   1,933.11/2,666.75 = 1,146.78/x
3. Step 3: Cross multiply
   1,933.11x = 2,666.75 × 1,146.78
4. Step 4: Simplify right side
   1,933.11x = 3,058,169.83
5. Step 5: Solve for x
   x = 3,058,169.83/1,933.11
6. Step 6: Final answer
   x = 1,581.99