Finding the Fourth Proportional to 1,366.29, 1,887.03 and 1,089.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.29 : 1,887.03 = 1,089.54 : x
2. Step 2: Convert to fraction form
   1,366.29/1,887.03 = 1,089.54/x
3. Step 3: Cross multiply
   1,366.29x = 1,887.03 × 1,089.54
4. Step 4: Simplify right side
   1,366.29x = 2,055,994.67
5. Step 5: Solve for x
   x = 2,055,994.67/1,366.29
6. Step 6: Final answer
   x = 1,504.80