Finding the Fourth Proportional to 1,051.41, 1,451.52 and 911.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.41 : 1,451.52 = 911.73 : x
2. Step 2: Convert to fraction form
   1,051.41/1,451.52 = 911.73/x
3. Step 3: Cross multiply
   1,051.41x = 1,451.52 × 911.73
4. Step 4: Simplify right side
   1,051.41x = 1,323,394.33
5. Step 5: Solve for x
   x = 1,323,394.33/1,051.41
6. Step 6: Final answer
   x = 1,258.69