Finding the Fourth Proportional to 1,499.57, 2,066.37 and 1,161.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.57 : 2,066.37 = 1,161.44 : x
2. Step 2: Convert to fraction form
   1,499.57/2,066.37 = 1,161.44/x
3. Step 3: Cross multiply
   1,499.57x = 2,066.37 × 1,161.44
4. Step 4: Simplify right side
   1,499.57x = 2,399,954.44
5. Step 5: Solve for x
   x = 2,399,954.44/1,499.57
6. Step 6: Final answer
   x = 1,600.43