Finding the Fourth Proportional to 1,931.76, 2,665.82 and 1,047.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.76 : 2,665.82 = 1,047.57 : x
2. Step 2: Convert to fraction form
   1,931.76/2,665.82 = 1,047.57/x
3. Step 3: Cross multiply
   1,931.76x = 2,665.82 × 1,047.57
4. Step 4: Simplify right side
   1,931.76x = 2,792,633.06
5. Step 5: Solve for x
   x = 2,792,633.06/1,931.76
6. Step 6: Final answer
   x = 1,445.64