Finding the Fourth Proportional to 1,359.83, 2,039.88 and 1,267.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.83 : 2,039.88 = 1,267.22 : x
2. Step 2: Convert to fraction form
   1,359.83/2,039.88 = 1,267.22/x
3. Step 3: Cross multiply
   1,359.83x = 2,039.88 × 1,267.22
4. Step 4: Simplify right side
   1,359.83x = 2,584,976.73
5. Step 5: Solve for x
   x = 2,584,976.73/1,359.83
6. Step 6: Final answer
   x = 1,900.96