Finding the Fourth Proportional to 1,500.73, 2,071.37 and 911.66

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.73 : 2,071.37 = 911.66 : x
2. Step 2: Convert to fraction form
   1,500.73/2,071.37 = 911.66/x
3. Step 3: Cross multiply
   1,500.73x = 2,071.37 × 911.66
4. Step 4: Simplify right side
   1,500.73x = 1,888,377.10
5. Step 5: Solve for x
   x = 1,888,377.10/1,500.73
6. Step 6: Final answer
   x = 1,258.31