Finding the Fourth Proportional to 1,665.14, 2,491.52 and 1,045.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.14 : 2,491.52 = 1,045.94 : x
2. Step 2: Convert to fraction form
   1,665.14/2,491.52 = 1,045.94/x
3. Step 3: Cross multiply
   1,665.14x = 2,491.52 × 1,045.94
4. Step 4: Simplify right side
   1,665.14x = 2,605,989.27
5. Step 5: Solve for x
   x = 2,605,989.27/1,665.14
6. Step 6: Final answer
   x = 1,565.03