Finding the Fourth Proportional to 1,931.66, 2,665.71 and 1,047.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.66 : 2,665.71 = 1,047.48 : x
2. Step 2: Convert to fraction form
   1,931.66/2,665.71 = 1,047.48/x
3. Step 3: Cross multiply
   1,931.66x = 2,665.71 × 1,047.48
4. Step 4: Simplify right side
   1,931.66x = 2,792,282.91
5. Step 5: Solve for x
   x = 2,792,282.91/1,931.66
6. Step 6: Final answer
   x = 1,445.53