Finding the Fourth Proportional to 1,415.33, 1,954.33 and 918.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.33 : 1,954.33 = 918.83 : x
2. Step 2: Convert to fraction form
   1,415.33/1,954.33 = 918.83/x
3. Step 3: Cross multiply
   1,415.33x = 1,954.33 × 918.83
4. Step 4: Simplify right side
   1,415.33x = 1,795,682.67
5. Step 5: Solve for x
   x = 1,795,682.67/1,415.33
6. Step 6: Final answer
   x = 1,268.74