Finding the Fourth Proportional to 1,500.83, 2,071.26 and 911.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.83 : 2,071.26 = 911.15 : x
2. Step 2: Convert to fraction form
   1,500.83/2,071.26 = 911.15/x
3. Step 3: Cross multiply
   1,500.83x = 2,071.26 × 911.15
4. Step 4: Simplify right side
   1,500.83x = 1,887,218.19
5. Step 5: Solve for x
   x = 1,887,218.19/1,500.83
6. Step 6: Final answer
   x = 1,257.45