Finding the Fourth Proportional to 1,359.99, 1,876.91 and 828.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.99 : 1,876.91 = 828.83 : x
2. Step 2: Convert to fraction form
   1,359.99/1,876.91 = 828.83/x
3. Step 3: Cross multiply
   1,359.99x = 1,876.91 × 828.83
4. Step 4: Simplify right side
   1,359.99x = 1,555,636.70
5. Step 5: Solve for x
   x = 1,555,636.70/1,359.99
6. Step 6: Final answer
   x = 1,143.86