Finding the Fourth Proportional to 1,531.45, 2,113.34 and 832.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.45 : 2,113.34 = 832.83 : x
2. Step 2: Convert to fraction form
   1,531.45/2,113.34 = 832.83/x
3. Step 3: Cross multiply
   1,531.45x = 2,113.34 × 832.83
4. Step 4: Simplify right side
   1,531.45x = 1,760,042.39
5. Step 5: Solve for x
   x = 1,760,042.39/1,531.45
6. Step 6: Final answer
   x = 1,149.27