Finding the Fourth Proportional to 1,931.67, 2,665.68 and 1,047.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.67 : 2,665.68 = 1,047.46 : x
2. Step 2: Convert to fraction form
   1,931.67/2,665.68 = 1,047.46/x
3. Step 3: Cross multiply
   1,931.67x = 2,665.68 × 1,047.46
4. Step 4: Simplify right side
   1,931.67x = 2,792,188.92
5. Step 5: Solve for x
   x = 2,792,188.92/1,931.67
6. Step 6: Final answer
   x = 1,445.48