Finding the Fourth Proportional to 1,665.86, 2,297.85 and 1,045.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.86 : 2,297.85 = 1,045.22 : x
2. Step 2: Convert to fraction form
   1,665.86/2,297.85 = 1,045.22/x
3. Step 3: Cross multiply
   1,665.86x = 2,297.85 × 1,045.22
4. Step 4: Simplify right side
   1,665.86x = 2,401,758.78
5. Step 5: Solve for x
   x = 2,401,758.78/1,665.86
6. Step 6: Final answer
   x = 1,441.75