Finding the Fourth Proportional to 1,269.95, 1,899.72 and 959.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,269.95 : 1,899.72 = 959.49 : x
2. Step 2: Convert to fraction form
   1,269.95/1,899.72 = 959.49/x
3. Step 3: Cross multiply
   1,269.95x = 1,899.72 × 959.49
4. Step 4: Simplify right side
   1,269.95x = 1,822,762.34
5. Step 5: Solve for x
   x = 1,822,762.34/1,269.95
6. Step 6: Final answer
   x = 1,435.31